Inner Mongolia, China

Glassy Fluorite Crystal on Cassiterite Matrix, Inner Mongolia

SKU · fZYUEXFEVuISTE5d
$285.00
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One large glassy fluorite crystal, pale green at the core and colourless at the edges, standing on dark cassiterite-bearing matrix with a collar of small olive fluorites around its base. Inner Mongolia. 7.1 × 4.6 × 4.6 cm, 180 g.

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Hand-examined + numbered
Worldwide shipping
Insured tracked delivery
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Acrylic base included
14-day return
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Specimen details

MineralFluorite
LocalityInner Mongolia, China
Crystal systemIsometric
Chemical formulaCaF₂
Dimensions7.1 cm × 4.6 cm × 4.6 cm
Weight180 g
ColorWhite
SizeSmall Cabinet (2–4 inches / 5–10 cm)
SpeciesFluorite
ConditionNo damage on display faces

Tags

mineral collectioncollector's specimenfluoritedecorative stonescrystal enthusiastsrare crystalfluorite specimenInner Mongoliageologynatural beautygemstoneunique mineralsCassiterite

About this specimen

One crystal carries this piece. A large glassy fluorite, faintly green through the core and colourless at the edges, sits square on near-black matrix and takes up most of the specimen’s height. Its faces are lightly etched and slightly frosted rather than mirror-flat, softening the light passing through. A collar of much smaller olive-to-straw fluorites crowds the base.

Fluorite and cassiterite keep company in tin ground for a chemical reason: both come from the same fluorine-rich late-stage fluids. Tin travels as fluoride complexes, and the fluorine left behind when it drops out ends up locked into CaF2. The pairing is common, though rarely this well composed, with one dominant crystal instead of a crust. Fluorite is Mohs 4 with perfect octahedral cleavage; the etch figures will not polish out, and should not.

It measures 7.1 × 4.6 × 4.6 cm and weighs 180 g, sized for the hand and a small shelf. There is no stand; the matrix gives it a flat, stable foot. Every photograph on this listing was made from this specimen.

About Fluorite

Fluorite is a halide mineral prized by collectors for its exceptional color range, with several world-class Chinese localities.

Learn more about Fluorite in our encyclopedia

About Inner Mongolia

Inner Mongolia, China — collector specimens of fluorite and barite.

More specimens from this locality

Frequently asked questions

Will I receive the exact specimen shown?

Yes. Every specimen is a single, one-of-a-kind piece, and the photographs show the exact item you will receive — never a stock photo.

Is this Fluorite natural?

Yes — specimens like this form naturally. As is standard in the trade, some pieces are gently cleaned or trimmed; we photograph the actual specimen and describe its origin and condition conservatively.

How is it packed and shipped?

Orders ship worldwide with fully insured, tracked delivery, carefully packed to protect fragile crystals. A display base is included.

Can I return it?

Yes — there is a 14-day return window.

What collectors say

★★★★★4.97· Verified reviews
Glassy Fluorite Crystal on Cassiterite Matrix, Inner Mongolia
Glassy Fluorite Crystal on Cassiterite Matrix, Inner Mongolia
$285.00