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Minerals

Fluorite from Hunan and Jiangxi, calcite from Rio Grande do Sul, pyromorphite from Guangxi and blue barite from Nador, catalogued piece by piece.

Shop Fluorite, Calcite, Pyrite and Barite Specimens With the Mine Named on Every Label

A mineral specimen is a naturally formed crystal or crystal group collected from a named deposit and kept as it left the ground, trimmed at most, never carved or reshaped. Collectors buy from this parent collection when they want breadth rather than a single species, so the 557 specimens listed here cross fluorite, calcite, pyrite, barite, scolecite, epidote and pyromorphite from mines in China, India, Brazil, Morocco, Pakistan and Mexico. Astro Gallery of Gems acquires this material at the mines and at the international shows, measures and weighs each piece, then prices it on aesthetics, damage and locality rather than by the pound.

Thumbnail to Museum: Order Minerals by the Size Class That Fits Your Cabinet

Size class governs a mineral collection more strictly than species does, because a cabinet holds a fixed volume and a shelf carries a fixed load. Astro Gallery measures every specimen across its longest axis before listing it, which makes these four tiers checkable rather than approximate.

Size classWhat occupies it and who buys it
Thumbnail and miniature, under 3 inchesSingle fluorite cubes, compact scolecite sprays and pyrite groups that live in a drawer case or a hinged perky box, and which carry most first purchases into the hobby.
Small cabinet, 3 to 5 inchesHunan fluorite plates and Castelinho calcite groups sized for a bookshelf, the tier at which a collector begins paying for aesthetics instead of chemistry.
Cabinet, 5 to 9 inchesYaogangxian fluorite on quartz and Daye Mine pyrite that hold a shelf alone and need a light aimed at them before the colour reads correctly.
Large cabinet and museum, above 9 inchesSelenite plates from Rio Grande do Sul and multi crystal fluorite matrices weighed in pounds, which need a dedicated case, a level surface and a freight quote.

Yaogangxian to Jebel Ouichane: The Mines Behind This Shelf

Locality does more than fill a label. A mine sets the colour, the crystal habit and the ceiling on size for a species, and it decides whether a specimen can ever be replaced once the pocket closes.

Hunan and Jiangxi, ChinaYaogangxian, Xianghualing and the De'an Mine at Wushan produce the green, blue and purple fluorite cubes on this page, frequently perched on white quartz. Chinese pockets close without notice, so a colour that leaves the market rarely returns at the figure it once carried.
Rio Grande do Sul, BrazilThe Castelinho Mine in Alto Uruguai yields calcite in habits recorded nowhere else, and the same basalt country rock gives the gypsum variety selenite plates listed here. Brazilian pockets are worked patiently, so specimens arrive large and well terminated.
Maharashtra, IndiaThe Deccan basalt quarries around Jalgaon, Aurangabad and Soygaon supply the zeolites: scolecite sprays, thomsonite and mesolite. Astro Gallery buys these through the quarry agents directly, which keeps needle sprays intact that a second round of handling would destroy.
Morocco, Pakistan and MexicoBlue barite from Jebel Ouichane at Nador, epidote from the Haramosh Mountains in Baltistan and fluorapatite from Cerro de Mercado in Durango complete the shelf. Each is a single mine signature, so on these pieces the locality is the specimen's identity.

On the Shelf Now: Species, Detail and the Figure Each Carries

Each row names one specimen, its stated detail and the amount it costs at this moment. Prices move with the catalogue rather than with a printed list, so a specimen that sells leaves the table instead of lingering as a listing nobody can add to cart.

PieceDetailPrice
Green Fluorite Cluster from XIANGHUALING, HUNAN, CHINA See listing $ 10,000.00
Calcite from Castelinho Mine, Alto Uruguai, Rio Grande do Sul, Brazil See listing $ 18,000.00
Purple Fluorite from Hunan Province, China See listing $ 3,500.00
Scolecite Cluster from Jalgaon District, Maharashtra, India See listing $ 12,000.00
Optical Calcite with Manganese Inclusions from Jinhua, Zhejiang Prov., China See listing $ 9,000.00
Fluorapatite Crystals in Quartz from Cerro de Mercado, Durango, Mexico See listing $ 1,500.00
Buy a specimen photographed exactly as it standsEvery mineral here is a single crystal group with its own measurements, and the figure beside it refreshes straight from stock.
View all 557 pieces Request photographs

First Specimen or Fifth: Two Ways Collections Actually Grow

Two buying patterns dominate this collection and they pull against each other. One builds coverage across many species, the other concentrates the same money into fewer and better pieces.

Starting a collectionA new collector buys breadth, taking thumbnails and miniatures across fluorite, pyrite, calcite and the Indian zeolites so the cabinet teaches the difference between crystal habits. Small sizes forgive mistakes, travel cheaply, and let you learn what damage actually looks like before spending seriously.
Upgrading a collectionAn established collector thins the early shelf and purchases one cabinet specimen in place of six miniatures, paying for undamaged terminations, saturated colour and a mine that no longer produces. Astro Gallery prices that tier on aesthetics and condition rather than on dimensions alone.

Damage, Repair and Provenance: Check Four Things Before You Pay

Four judgements set the price of every specimen on this page, and Astro Gallery states each of them in the listing rather than leaving a buyer to infer them from a photograph.

Damage and contactA chipped termination or a bruised crystal edge cuts value sharply, while a contact face, where a neighbouring crystal simply grew against this one, does not. The gallery distinguishes the two in writing on every listing.
Repair and restorationReattached crystals and filled matrix are ordinary in the mineral trade and unacceptable when unstated. Astro Gallery declares any repair, glue line or stabilisation in the description and photographs the join under raking light.
Matrix and trimmingMatrix should support the crystals and stop there. Over trimmed rock leaves a specimen unstable on a shelf, an untrimmed slab wastes cabinet space, and measured trimming raises value while a concealed saw cut lowers it.
Provenance and old labelsA specimen with a dated mine label, a collection number or a documented pocket carries a premium that survives resale. Astro Gallery records locality at the level the mine supplied, not at the level of the country.

Question and Answer: What Buyers Ask Before Ordering a Specimen

How much does a mineral specimen cost?
Thumbnails and miniatures open the range, small cabinet pieces occupy the middle, and large fluorite matrices and museum sized plates sit at the top. The table above shows the live figure for each specimen currently in stock.
Are these minerals natural or treated?
Every specimen here left the ground in the form you see, cleaned and trimmed at most. Astro Gallery states any repair, stabilisation or surface coating in the description, and never presents a manufactured crystal as a natural one.
Where do I start if I want to buy my first specimen?
Begin with miniatures under three inches across two or three species, which teaches habit and damage at a manageable outlay. Email the gallery a budget and a shelf size, and the team will propose specific pieces against it.
What does the locality on the label actually mean?
It names the mine and district a specimen was collected from, such as Yaogangxian in Hunan or the Castelinho Mine in Rio Grande do Sul. Locality drives colour, habit and replaceability, which is why it belongs on the label.
Can I see more photographs before I order?
Yes. Ask for the rear, the base, a scale reference or a short clip under moving light, and the gallery sends them the same working day.
How should I display a mineral specimen?
Use a closed cabinet with a cool light source, an acrylic stand for anything that will not sit level, and keep fluorite and selenite out of direct sunlight. Grouping one species across several localities reads better than mixing everything.
Do you ship mineral specimens worldwide?
Yes. Every parcel leaves tracked and fully insured with customs paperwork completed in advance, and the heaviest cabinet pieces move by freight against a quote agreed with you beforehand.
Can I return a specimen that does not suit the cabinet?
Yes, under the returns terms the gallery publishes. Requesting measurements and extra photographs before you purchase settles the question for most buyers before anything is packed.

Label Language: The Words a Mineral Description Uses

HabitThe characteristic shape a species grows in, such as the cube for fluorite or the pyritohedron for pyrite, which identifies a specimen before its colour does.
TerminationThe natural face that closed a crystal's growth. An undamaged termination is the single feature that most reliably separates a good specimen from an ordinary one.
MatrixThe host rock a crystal grew on, kept in place because it proves the specimen was collected as a unit rather than assembled on a bench afterwards.
ContactA flat dull area where an adjacent crystal grew against this one. Contact is a growth feature rather than damage, and it prices very differently from a chip.
DruseA carpet of small crystals coating a surface, valued when it contrasts against a larger crystal and discounted when it obscures the piece it covers.
Perky boxThe small hinged plastic case with a foam insert in which thumbnail and miniature specimens are stored, labelled and shipped.

Cabinet, Classroom and Gift: Where a Mineral Specimen Ends Up

A mineral collection earns its keep in three separate settings. Collectors run closed cabinets under graded lighting, where a shelf of Chinese fluorite reads as a deliberate colour series and one Daye Mine pyrite anchors the whole run. Teachers and parents buy the same material as physical evidence, since a cleaved calcite rhomb and a pyrite cube demonstrate symmetry faster than any diagram. Gift buyers arrive through birthstones, anniversaries and the metaphysical vocabulary of grounding and protection, and Astro Gallery records species, locality and weight for them precisely as it does for a specialist.

The gallery makes no health or energetic claim for any specimen, and describes instead what a mineral is, where it came from and what condition it reached you in. Buyers arriving by either route receive identical documentation and an identical invoice.

Light, Damp and Dust: Keeping a Collection Stable

Minerals deteriorate in a collection for three reasons, and all three are avoidable. Fluorite from Hunan fades under direct sunlight across years, and realgar darkens faster still, so a cabinet away from a south facing window protects colour permanently. Selenite dissolves in water and scratches at Mohs 2, which puts it beyond any wet cleaning, while pyrite decays in damp air, so hold humidity moderate and steady rather than swinging with the seasons. Dust everything with a soft brush instead of a cloth, because a cloth catches on terminations and snaps the fine scolecite and mesolite needles.

How to Purchase a Specimen and What Arrives With It

Astro Gallery of Gems has invoiced mineral specimens since 1961, and the process stays deliberately plain. The price on the listing is the price charged, checkout settles through Shop Pay, PayPal, Apple Pay, Google Pay or card, and an itemised invoice naming the species and its locality follows every purchase. The gallery beds crystals in cut foam so no pressure reaches a termination, double boxes anything above a pound, and despatches tracked and fully insured with customs paperwork completed in advance.

Heavy cabinet pieces and museum sized plates travel by freight against a quote the gallery agrees with you before anything moves, and the declared value matches your invoice rather than a rounded estimate. The returns policy and the guarantee published on about us apply to every specimen sold here, including pieces bought from photographs alone.

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Shop the whole shelf, not only the front rowAsk for measurements, a scale photograph or a written condition report on any specimen before you commit to it.
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Species, Regions and Grades: Where to Browse Next

Minerals branch two ways through this catalogue: by species, if you are chasing one crystal, and by region, if you are assembling a locality suite. Both routes return you to the same shelf from a different direction.

Single species pages
Fluorite Calcite Pyrite Barite Apophyllite
Collect by region
Asian minerals African minerals Indian minerals South American minerals North American minerals
Grade and rarity
Fine minerals Museum quality minerals The vault
Quartz and crystal forms
Quartz Amethyst Selenite Crystal points
Before you buy
Shipping and returns About Astro Gallery Fossils