Green Grossular Garnet Crystals on Matrix, Tanzania

SKU · Soi5GIJRgTpMjgTv
$145.00
Free worldwide shipping over $38

Glassy grass-green grossular garnets break out of a dark botryoidal brown crust at both ends of this Tanzanian miniature, the crust itself dotted with apricot spherules. Acrylic cube mount. 3.3 × 1.8 × 2.5 cm, 35 g.

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Authenticity guaranteed
Hand-examined + numbered
Worldwide shipping
Insured tracked delivery
Display-ready
Acrylic base included
14-day return
No-questions return window

Specimen details

MineralGarnet
Locality
Crystal systemIsometric
Chemical formulaX3Y2(SiO4)3
Dimensions3.3 cm × 1.8 cm × 2.5 cm
Weight35 g
ColorGreen
SizeMiniature (up to 2 inches / up to 5 cm)
SpeciesGarnet
ConditionNo damage on display faces

Tags

garnet specimengeological specimencollector's itemgarnetmineral specimennatural gemstoneunique mineralnatural beautyUnder $250mineral enthusiast

About this specimen

Grass-green garnet crystals break out of a dark, bubbled brown crust at both ends of this small matrix piece — glassy, transparent when the light catches them edge-on, and set at every angle rather than gathered into one tight group. The crust repays a second look: a botryoidal chocolate-brown coating studded with tiny apricot spherules.

Grossular is the calcium-aluminium member of the garnet group, Ca3Al2(SiO4)3, and its green comes from a trace of vanadium or chromium sitting in the aluminium site. Tanzania is the locality most associated with the vivid green varieties. Garnet has no cleavage and runs Mohs 6.5 to 7.5, so the crystals themselves are tough; the crust they are set in is not, and will crumble if scrubbed.

A miniature at 3.3 × 1.8 × 2.5 cm and 35 g, fixed with white putty to a clear acrylic cube so the better crystal group faces forward. Each photograph shows the very piece described.

About Garnet

Garnet refers to a group of related silicate minerals sharing a common crystal structure but differing in composition. The group includes almandine, pyrope, spessartine, andradite, grossular, and uvarovite — each with distinct collector and gem properties.

Learn more about Garnet in our encyclopedia

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 Garnet 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
Green Grossular Garnet Crystals on Matrix, Tanzania
Green Grossular Garnet Crystals on Matrix, Tanzania
$145.00