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Benitoite with "Crossite" inclusions
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A very sharp, triangular-shaped, nearly textbook single crystal of Benitoite heavily included with "Crossite" fibers from the California State Gem Mine in California. While not gemmy and bright blue, this is still a textbook crystal of a very rare species. These Benitoite "triangles" as some people refer to them, are a completely unique to this mineral that only formed good crystals in this unusual geologic occurrence a strange, aberrant deposit on Santa Rita Peak in the Diablo Range of California. No other mineral species looks like these and this well-formed crystal is heavily included with "Crossite" fibers coloring the crystal a dull grayish blue.
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Product details
Species
SizeThumbnail
Dimensions2.2 x 1.9 x 0.8 cm
Locality
SKUPSC26-24
Listed on05/08/2026
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Mineral guideLearn about Benitoiterare barium titanium cyclosilicate with sapphire-blue, sharp triangular crystals and vivid UV fluorescence; locality California State Gem Mine.
Regional guideBenitoite from California State Gem MineSign in to contribute
OriginCalifornia State Gem MineAbout specimens from California State Gem Mine
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