What is a mineral specimen?

A natural crystal or group of crystals kept as it grew, often still on the rock it grew from, rather than cut into a gem. Collectors value sharp crystal faces, colour, lustre, size and the famous mine it came from.

What is the shiny gold rock made of cubes?

Pyrite, iron sulphide, known as fool’s gold. It grows as near-perfect cubes, and in big brassy clusters like the famous ones from Peru. Real gold is softer, yellower and never grows in cubes like that.

How do I know a specimen is real?

Buy from sellers who name the mineral and the locality, check the reviews, and be wary of dyed or coated "aura" crystals unless they say so. Bismuth crystals are grown in a lab from melted metal, which is fine as long as the listing says so.

The specimen hall

Gems still in their rock

Before a gem is cut, it is a crystal growing in a rock: emerald in a calcite vein, ruby in marble, pyrite in perfect metallic cubes. Museums keep the best of these whole, because a crystal on its rock shows exactly how and where it grew. Here are 58 of the finest, each with the closest real piece you can buy on Amazon, from a $10 starter to museum-grade pieces costing thousands.

Jump to the museum-grade gallery (real pieces for sale, up to about $40,000), specimens you can own for under $200, boxes and cases to show them off, or see the gem museum for crown jewels and ancient treasures.

Emerald in its rock, Muzo, Colombia — **Emerald in its rock** Muzo, Colombia Muzo emeralds grow in veins of white calcite running through black shale. Miners follow the white veins, and this is what they hope to find: a green crystal still locked in place. Photo: Didier Descouens, CC BY-SA 3.0.

Pyrite, fool’s gold, Huanzala mine, Ancash, Peru — **Pyrite, fool’s gold** Huanzala mine, Ancash, Peru Iron and sulphur, nothing more, yet it grows into brassy stacks of cubes that shine like polished metal. The Huanzala mine in the Peruvian Andes produced the most famous clusters of all; most big pyrite you see for sale is Peruvian. Photo: James St. John, CC BY 2.0.

Perfect pyrite cubes, Navajún, La Rioja, Spain — **Perfect pyrite cubes** Navajún, La Rioja, Spain Nobody cut these. Pyrite in the soft clay rock of Navajún grows as cubes so sharp and flat they look machined, sometimes interlocked like dice. Miners split the rock and the cubes come out finished. Photo: JJ Harrison, CC BY-SA 3.0.

Ruby in marble, Luc Yen, Vietnam — **Ruby in marble** Luc Yen, Vietnam Ruby forms when limestone is baked into marble by colliding continents. Marble holds almost no iron, which is why marble rubies glow such a clean red. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Red spinel in marble, Mogok, Myanmar — **Red spinel in marble** Mogok, Myanmar Spinel grows in the same Mogok marble as ruby, and for centuries nobody could tell them apart. The Black Prince’s Ruby in the British crown is a spinel. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

A sapphire crystal in its rock, San Jacinto Mountains, California — **A sapphire crystal in its rock** San Jacinto Mountains, California grows as a six-sided spindle like this one. A cutter looks at that shape and plans the stone inside it. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Diamond in kimberlite, Mir mine, Siberia, Russia — **Diamond in kimberlite** Mir mine, Siberia, Russia A diamond octahedron still sitting in , the volcanic rock that carried it up from more than 150 km down. Most mined diamonds come out of pipes of this rock. Photo: James St. John, CC BY 2.0.

Aquamarine on mica, Nagar, Hunza Valley, Pakistan — **Aquamarine on mica** Nagar, Hunza Valley, Pakistan Aquamarine is , the same mineral as emerald, coloured blue by iron instead of green by chromium. It grew in an open pocket in granite high in the Karakoram, next to the silver mica it still sits on. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Tourmaline on smoky quartz, Haddam Neck, Connecticut, USA — **Tourmaline on smoky quartz** Haddam Neck, Connecticut, USA Green tourmaline crystals that grew straight onto a quartz crystal in the same pocket, in a quarry in New England. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Imperial topaz crystal, Ouro Preto, Brazil — **Imperial topaz crystal** Ouro Preto, Brazil Golden-orange imperial topaz comes almost entirely from the hills around Ouro Preto. Look at the crisp end of the crystal: that flat face is how topaz breaks, cleanly, in one direction. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Benitoite, San Benito County, California, USA — **Benitoite** San Benito County, California, USA Triangular blue crystals with black neptunite in white rock. Gem benitoite has been found in only one mine on earth, and it is the state gem of California. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Garnets grown inside schist, Ötztal, Austria — **Garnets grown inside schist** Ötztal, Austria These garnets grew inside solid rock as it was squeezed and heated deep in a mountain range. The mica schist bent and flowed around them while they grew. Photo: Raimond Spekking, CC BY-SA 4.0.

Rhodochrosite, Sweet Home mine, Colorado, USA (Royal Ontario Museum) — **Rhodochrosite** Sweet Home mine, Colorado, USA (Royal Ontario Museum) Cherry-red rhombs from an old silver mine that became famous for these instead. Rhodochrosite is the state mineral of Colorado. Photo: Tony Hisgett from Birmingham, UK, CC BY 2.0.

Lapis lazuli in its rock, Sar-e-Sang, Afghanistan — **Lapis lazuli in its rock** Sar-e-Sang, Afghanistan The same mines that supplied the blue for Tutankhamun’s treasures, still worked today. Photo: James St. John, CC BY 2.0.

Amethyst geode, Brazil (National Museum of Natural History, Paris) — **Amethyst geode** Brazil (National Museum of Natural History, Paris) A gas bubble in an ancient lava flow, lined crystal by crystal with purple quartz over a very long time. Photo: Marie-Lan Taÿ Pamart, CC BY 4.0.

Opal in its rock, Coober Pedy, South Australia — **Opal in its rock** Coober Pedy, South Australia Opal fills cracks in sandstone as silica-rich water seeps through and dries. Miners cut it out in seams like this. Photo: Dpulitzer, CC BY-SA 3.0.

Tanzanite crystal, Merelani Hills, Tanzania — **Tanzanite crystal** Merelani Hills, Tanzania Every tanzanite on earth comes from a few square kilometres near Mount Kilimanjaro. Turn the crystal and it changes between blue, violet and burgundy. Photo: Chromalys, CC BY-SA 3.0.

Lazurite crystals: lapis in crystal form, Sar-e-Sang, Badakhshan, Afghanistan — **Lazurite crystals: lapis in crystal form** Sar-e-Sang, Badakhshan, Afghanistan Lapis is a rock, but its blue mineral, lazurite, very rarely grows as distinct crystals like these, from the same 6,000-year-old mines. Collectors prize them above any lapis carving. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Red beryl, Wah Wah Mountains, Utah, USA — **Red beryl** Wah Wah Mountains, Utah, USA The rarest member of the emerald family. Gem red beryl has been mined in quantity in only one place on earth, this mountain range in Utah. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Painite, Myanmar — **Painite** Myanmar Once called the rarest mineral on earth: for decades after it was found in the 1950s, only a few crystals were known. Since 2001 more have turned up in Myanmar, but a clean gem painite is still a great rarity. Photo: Mineral Enthusiast, CC BY-SA 4.0.

Red tourmaline on white feldspar, Jonas mine, Minas Gerais, Brazil — **Red tourmaline on white feldspar** Jonas mine, Minas Gerais, Brazil Rubellite crystals growing out of blades of cleavelandite feldspar. The Jonas mine is famous for a pocket of red tourmaline found in 1978. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Watermelon tourmaline, Santa Rosa mine, Minas Gerais, Brazil — **Watermelon tourmaline** Santa Rosa mine, Minas Gerais, Brazil Tourmaline can change colour as it grows. Slice a crystal like this across and you see a pink core and a green rind, like a watermelon. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Kunzite, Urucum mine, Minas Gerais, Brazil — **Kunzite** Urucum mine, Minas Gerais, Brazil The pink variety of spodumene, named for the Tiffany gemmologist George Kunz. Its colour can fade in strong sunlight, so it is called the evening stone. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Morganite on quartz, Galileia, Minas Gerais, Brazil — **Morganite on quartz** Galileia, Minas Gerais, Brazil Pink beryl, the emerald’s peach-coloured cousin, named after the banker J. P. Morgan. This large piece was found in the 1960s. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Heliodor-tipped aquamarine, Erongo Mountains, Namibia — **Heliodor-tipped aquamarine** Erongo Mountains, Namibia Blue aquamarine crystals with golden heliodor at their tips: two colours of beryl in one cluster, from a granite range in the Namibian desert. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Demantoid garnet, Korkodin, southern Urals, Russia — **Demantoid garnet** Korkodin, southern Urals, Russia Green garnet with more fire than diamond, found in the Urals in the 1800s and loved by Fabergé. Wispy horsetail are a classic sign of Russian stones. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Garnet in its rock, Antsirabe region, Madagascar — **Garnet in its rock** Antsirabe region, Madagascar A perfect garnet crystal still sitting in its rock. Garnets grow as these many-sided balls, a shape called a dodecahedron. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

A yellow sapphire crystal, Ratnapura, Sri Lanka — **A yellow sapphire crystal** Ratnapura, Sri Lanka Sapphire is not always blue. This golden crystal from the gem gravels of Ratnapura, the City of Gems, still has its natural tapering shape. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Blue euclase, Lost Hope mine, Karoi, Zimbabwe — **Blue euclase** Lost Hope mine, Karoi, Zimbabwe A rare beryllium gem with blue streaks of colour. Its name means easily broken, because it splits cleanly along one direction. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Zircon, Gilgit, Pakistan — **Zircon** Gilgit, Pakistan Natural zircon, a real gem, not cubic zirconia. Zircon crystals hold the oldest dated pieces of the earth, more than four billion years old. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Titanite (sphene), Ankarafa, Madagascar — **Titanite (sphene)** Ankarafa, Madagascar A twinned crystal of titanite, a gem with even more fire than diamond but too soft for most rings. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Cuprite, Tsumeb mine, Namibia — **Cuprite** Tsumeb mine, Namibia A deep cherry-red copper oxide crystal from Tsumeb, one of the most famous mineral mines in the world. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Grandidierite, Cap Andrahomana, Madagascar — **Grandidierite** Cap Andrahomana, Madagascar A rare blue-green mineral first described in 1902. Gem-quality grandidierite was only found in the 2000s, and remains one of the rarest gems. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

A turquoise nugget, La Mariquita mine, Sonora, Mexico — **A turquoise nugget** La Mariquita mine, Sonora, Mexico Turquoise forms where copper-rich water seeps through rock. Nuggets like this are rare compared with turquoise in thin veins. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Chrysocolla, Ray mine, Arizona, USA — **Chrysocolla** Ray mine, Arizona, USA A copper mineral in sky blue, often sold as turquoise. It forms in the same desert copper mines. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Wulfenite, Onderra mine, Namibia — **Wulfenite** Onderra mine, Namibia Wulfenite grows as thin square plates like these. It is too soft to wear, but collectors love its honey colour. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Pink topaz, Ouro Preto, Minas Gerais, Brazil — **Pink topaz** Ouro Preto, Minas Gerais, Brazil Ouro Preto is the home of imperial topaz, sherry-gold crystals found almost nowhere else. Once in a while a crystal leans pink, the rarest and most prized shade of all. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Paraíba tourmaline, Batalha mine, Paraíba, Brazil — **Paraíba tourmaline** Batalha mine, Paraíba, Brazil Copper makes it glow a neon blue-green no other tourmaline has. Found only in the late 1980s, it became one of the most expensive coloured gems per carat. The cheap "10 ct Paraíba" stones on Amazon are not real, so we link none. Photo: Parent Géry, CC BY-SA 3.0.

Raspberry-red grossular garnet, Sierra Mojada, Coahuila, Mexico — **Raspberry-red grossular garnet** Sierra Mojada, Coahuila, Mexico Grossular is named after the gooseberry, for its usual green. This famous Mexican find came out raspberry red instead: crisp twelve-sided crystals sitting on white rock. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Sapphires from river gravel, Spokane Sapphire Mine, Montana, USA — **Sapphires from river gravel** Spokane Sapphire Mine, Montana, USA Washed out of old river gravel along the Missouri River. Look at the six-sided rings inside each one: that is how corundum grows, layer by layer. Visitors can still pay to dig the gravel and keep what they find. Photo: James St. John, CC BY 2.0.

Ruby in green zoisite, Longido, Kilimanjaro, Tanzania — **Ruby in green zoisite** Longido, Kilimanjaro, Tanzania Pink-red ruby crystals set in bright green zoisite with black specks of hornblende. It is rarely clear enough to facet, so it is carved and polished instead, sold as ruby zoisite or anyolite. Photo: Géry PARENT, Public domain.

Emerald on quartz, Kagem mine, Zambia — **Emerald on quartz** Kagem mine, Zambia Kagem is one of the biggest emerald mines in the world. Zambian emerald is a deeper, bluer green than Colombian, because there is more iron in the rock it grows in. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

A 12.66 carat diamond crystal, Democratic Republic of Congo — **A 12.66 carat diamond crystal** Democratic Republic of Congo This is how a diamond looks before anyone touches it: a honey-brown crystal with the eight-sided octahedron shape diamond grows in, here twinned, two crystals grown as one. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Pounamu, New Zealand jade, South Island, New Zealand — **Pounamu, New Zealand jade** South Island, New Zealand Māori call it pounamu and carve it into treasured heirlooms. Nephrite is a mat of tiny interlocking fibres, which is why it shimmers when polished and why it is one of the toughest stones on earth. Photo: James St. John, CC BY 2.0.

An amethyst cathedral, split in two, Crystal Mountain museum — **An amethyst cathedral, split in two** Crystal Mountain museum About 60 cm tall. Each cathedral was a gas bubble in a lava flow in Brazil, slowly lined with amethyst, then dug out and cut open like a book. Photo: Pseudopanax at English Wikipedia, Public domain.

Herkimer "diamonds", Herkimer County, New York, USA — **Herkimer "diamonds"** Herkimer County, New York, USA Not diamonds at all: quartz crystals with a point at both ends, grown loose in pockets of rock about 500 million years old. They come out so clear and bright that settlers called them diamonds, and the name stuck. Photo: James St. John, CC BY 2.0.

Precious opal from Virgin Valley, Virgin Valley, Nevada, USA — **Precious opal from Virgin Valley** Virgin Valley, Nevada, USA Virgin Valley opal grew inside buried wood in ancient volcanic ash. It is beautiful and famously fragile: it can crack as it dries, so many collectors keep it in water. Photo: James St. John, CC BY 2.0.

Welo opal, straight from the ground, Wollo, Ethiopia — **Welo opal, straight from the ground** Wollo, Ethiopia Found in the Ethiopian highlands in 2008, Welo opal flooded the market with bright fire. It soaks up water and can turn see-through for a while, then dries back to its colours. Photo: Dpulitzer, CC BY-SA 4.0.

Velvet malachite, Kolwezi, Democratic Republic of Congo — **Velvet malachite** Kolwezi, Democratic Republic of Congo Malachite is copper ore turned green by water. The Congo copper belt gives both these velvety crystal clusters and the banded stone carved into boxes and tabletops. Photo: Sailko, CC BY 3.0.

Azurite stalactites, sliced, Bisbee, Arizona, USA — **Azurite stalactites, sliced** Bisbee, Arizona, USA Cut across, azurite stalactites show rings of deep blue like eyes. This 75 cm slab came from the Bisbee copper mines, among the richest in America. Royal Ontario Museum, Toronto. Photo: Tony Hisgett from Birmingham, UK, CC BY 2.0.

Dioptase, Tsumeb mine, Namibia — **Dioptase** Tsumeb mine, Namibia Greener than most emeralds. When dioptase was found in Kazakhstan in the 1780s it was taken for emerald and sent to Russia as one. The crystals from Tsumeb are the finest known. Royal Ontario Museum, Toronto. Photo: Tony Hisgett from Birmingham, UK, CC BY 2.0.

Green fluorite from Rogerley, Rogerley quarry, County Durham, England — **Green fluorite from Rogerley** Rogerley quarry, County Durham, England Rogerley fluorite glows blue-violet in plain sunlight, so it seems to change colour as you carry it to a window. Fluorite gave its name to . Photo: Ivar Leidus, CC BY-SA 4.0.

Pink fluorite on pyrite, Huanzala mine, Peru — **Pink fluorite on pyrite** Huanzala mine, Peru From the same Peruvian mine as the famous pyrite: a pink fluorite octahedron sitting on brassy pyrite and grey galena. Pink fluorite this size is a collector’s dream. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Vanadinite, Mibladen, Morocco — **Vanadinite** Mibladen, Morocco Six-sided crystals as red as rust. Vanadinite is lead vanadate, an ore of vanadium, the metal used to make tough steel for tools. Photo: Ivar Leidus, CC BY-SA 4.0.

Crocoite, Dundas, Tasmania, Australia — **Crocoite** Dundas, Tasmania, Australia Orange needles of lead chromate on white dundasite. The element chromium was discovered in crocoite in 1797, and Dundas in Tasmania gives the best crystals in the world. Photo: JJ Harrison (https://www.jjharrison.com.au/), CC BY-SA 3.0.

A gold nugget of nearly four pounds, Australia — **A gold nugget of nearly four pounds** Australia Gold is one of the few metals found pure in the ground. Australia has produced the biggest nuggets ever found, including the Welcome Stranger of 1869, about 72 kg. Field Museum, Chicago. Photo: James St. John, CC BY 2.0.

Sulphur crystals, Agrigento, Sicily, Italy — **Sulphur crystals** Agrigento, Sicily, Italy Bright yellow crystals from the sulphur mines of Sicily, which supplied most of the world’s sulphur in the 1800s. Warm one in your hand and it can crackle. Photo: Eric Hunt, CC BY-SA 2.5.

A giant stibnite cluster, Wuning mine, Jiangxi, China — **A giant stibnite cluster** Wuning mine, Jiangxi, China Silver swords of antimony sulphide, this cluster about 90 cm across. Ancient Egyptians ground stibnite into kohl to line their eyes. Photo: Robert M. Lavinsky, CC BY-SA 3.0.

Own a specimen

Museum pieces cost museum money, but real gems in their rock start at the price of a sandwich. These are sold as natural; each is a mineral still sitting where it grew, not a cut stone.

Sold as natural Starborn emerald crystal in matrix A real emerald crystal still in its host rock. Specimen grade, not gem grade: cloudy, like most of what comes out of the ground. about $50 on Amazon →

Sold as natural Kidz Rocks ruby in zoisite, 6 pieces Ruby crystals in green zoisite from Tanzania, the cheapest way to hold ruby in its rock. about $10 on Amazon →

Sold as natural Sublime Gifts pink tourmaline in quartz Pink tourmaline columns frozen in white quartz. about $18 on Amazon →

Sold as natural BUTW green tourmaline in quartz, Brazil A green tourmaline pencil caught inside clear quartz. about $15 on Amazon →

Sold as natural GEMBOURY Uruguay amethyst geode, 1.5 to 2 lb A piece of a lava-bubble geode, deep purple, in a gift box. about $55 on Amazon →

Sold as natural Perfect pyrite cube from Spain, 1.5 inch Not a gem, but one of the great museum pieces: pyrite from Navajun grows as near-perfect metal cubes, straight out of the clay, uncut. about $60 on Amazon →

Sold as natural Sublime Gifts blue kyanite blades, Brazil Long blue blades. Kyanite is harder along the blade than across it, which is very rare for a mineral. about $17 on Amazon →

Sold as natural Myhealingworld Herkimer diamond quartz, 20 g Not diamond: water-clear quartz crystals from New York that grow with points at both ends, already shiny. about $40 on Amazon →

Sold as natural Squire Boone rhodochrosite specimen in a treasure chest A small pink piece with an information card. A good first specimen for a child. about $17 on Amazon →

To display them Jucoan acrylic rock display case, 5 layers, 90 grids Clear drawers with velvet inserts: a home museum for small specimens and rough. about $25 on Amazon →

To display them ACODE mineral specimen shadow box, 100 types A labelled wall case of a hundred real minerals, ready to hang. about $50 on Amazon →

The museum-grade gallery

582 of the finest mineral specimens for sale on Amazon right now, from specialist mineral dealers who name the mine each piece came from: the kind of pieces museums and serious collectors buy. Even if you never buy one, they are worth scrolling. All checked in stock in October 2026; prices are rounded and one-of-a-kind pieces sell out.

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Museum gradeDioptase on a goethite vug, 4.54 lbEmerald-green dioptase lining a hollow in the rock.about $40,000on Amazon →

Museum gradeAquamarine crystal from Brazil, 592 gA single gem crystal the size of a fist and more.about $37,500on Amazon →

Museum gradeGreen apophyllite clusterMint-green crystals from the basalt quarries of India.about $37,500on Amazon →

Museum gradeGolden calcite with twinned crystals, Kazakhstanabout $35,000on Amazon →

Museum gradeCrocoite from TasmaniaOrange needles from Dundas, the best crocoite locality on earth.about $35,000on Amazon →

Museum gradeCalcite StalactiteA calcite stalactite that grew drip by drip in a cave.about $30,000on Amazon →

Museum gradeEmerald on calcite with pyrite, ColombiaGreen crystals still sitting in the white calcite they grew in, like the Muzo specimen above.about $29,000on Amazon →

Museum gradeAnglesite from Tsumeb, Namibiaabout $28,000on Amazon →

Museum gradeWulfeniteThin orange plates of lead molybdate.about $27,500on Amazon →

Museum gradeMalachite stalactites, Congoabout $25,000on Amazon →

Museum gradeApophyllite cast with stilbite, Pune, Indiaabout $25,000on Amazon →

ShowpiecesCitrine butterfly wings on a stand, 5 ftTwo halves of a geode standing taller than most people.about $25,000on Amazon →

Specimens you can own

Starter specimens, fossils, meteorites and geode kits, most with hundreds or thousands of ratings, plus a few museum-grade pieces. All checked in stock on October 11, 2026; photos are the listings' own; prices are rounded. Sold as natural except where marked lab-grown.

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Museum gradeAg Minerals crocoite from TasmaniaBright orange-red lead chromate crystals from the Dundas mines: one of the most sought-after specimens there is.about $35,000on Amazon →

Museum gradeAg Minerals painite from Burma, 142 gOnce the rarest mineral on earth.about $9,500on Amazon →

Museum gradeAg Minerals stibnite cluster from ChinaSteel-grey blades of antimony sulphide, the classic Chinese museum piece.about $8,000on Amazon →

Museum gradeAg Minerals deep green dioptase from the Congo, 182 gEmerald-green copper silicate crystals.about $3,500on Amazon →

Museum gradeSmoky quartz cluster, 4.79 lbA big natural cluster of brown quartz points.about $190on Amazon →

Museum gradeWulfenite collector specimenHoney-orange square plates.about $155on Amazon →

Starter specimensKALIFANO pyrite cluster from PeruOver 2,000 ratings: shiny brass cubes and crystals like the big Peruvian clusters, in a hand-sized piece.about $20on Amazon →

Starter specimensNatural pyrite cube from Navajún, Spain, 1.5 inA near-perfect cube that grew that way in the rock.about $60on Amazon →

Starter specimensCrystalAge pyrite cube, about 25 mmabout $11on Amazon →

Starter specimensKALIFANO celestite geode clusterSky-blue celestine crystals inside a geode, from Madagascar.about $26on Amazon →

Starter specimensZenkeeper rough rainbow fluorite, 1 lbPurple and green bands; glows under a UV torch.about $16on Amazon →

Starter specimensBlack tourmaline crystal, 200 to 350 gStriated black prisms.about $20on Amazon →

Show them off: boxes, cases and cabinets

How collectors and museums display specimens, from floating frames and perky boxes to wall cabinets, lit cases and glass cabinets. All checked in stock on October 11, 2026; most have hundreds or thousands of ratings.

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Specimen boxes and framesTeensery gem display boxes with clear lids, 3 cm, 10 packThe box to start with: one cut stone or small crystal per box, on a soft cushion under a clear lid. Label the lid and stack them.about $9on Amazon →

Specimen boxes and framesBSELUTNGY 3D floating frame boxes, 4.33 in, 20 packA clear film holds the specimen so it seems to float. Great for flat pieces, slices and small crystals.about $20on Amazon →

Specimen boxes and framesBSELUTNGY 3D floating frame boxes, 2.76 in, 20 packThe smaller size, for thumbnail specimens and cut stones.about $16on Amazon →

Specimen boxes and framesFloating frame holders with stands, 4.33 in, 4 packOver 570 ratings. Each frame stands up on its own.about $10on Amazon →

Specimen boxes and framesIllumigems perky boxes, 1 1/4 in cubes, 28 packThe hinged clear cube collectors use for thumbnail specimens, with a pedestal inside.about $48on Amazon →

Specimen boxes and framesDoubleFill clear rock display boxes, 10 packabout $15on Amazon →

Specimen boxes and framesClear acrylic display boxes with lids, 3.44 in, 6 packBig enough for a fist-sized cluster.about $35on Amazon →

Collection casesMisdary 90-grid rock collection box, 5 drawersFive clear drawers of 18 compartments each: a whole collection in one box.about $29on Amazon →

Collection casesAcrylic rock display case, 54 gridsabout $18on Amazon →

Collection casesAcrylic rock collection display caseAbout 280 ratings.about $17on Amazon →

Collection casesAcrylic rock collection case, 2nd gen, adjustableMove the dividers to fit bigger pieces.about $17on Amazon →

Collection casesCinnvoice rock display case, 35 gridsabout $40on Amazon →

More display gear, a turntable and a guide to setting up a stall like a travelling gem merchant are on the kit page.

Specimen photos from Wikimedia Commons under the licences shown on each card. Amazon links are affiliate links (tag thegemtray-20); we may earn a commission at no cost to you.