SWJ0050 - Exceedingly Rare Andradite Garnets with Sphalerite from Mexico
SWJ0050 - Exceedingly Rare Andradite Garnets with Sphalerite from Mexico SWJ0050 - Exceedingly Rare Andradite Garnets with Sphalerite from Mexico SWJ0050 - Exceedingly Rare Andradite Garnets with Sphalerite from Mexico SWJ0050 - Exceedingly Rare Andradite Garnets with Sphalerite from Mexico SWJ0050 - Exceedingly Rare Andradite Garnets with Sphalerite from Mexico SWJ0050 - Exceedingly Rare Andradite Garnets with Sphalerite from Mexico SWJ0050 - Exceedingly Rare Andradite Garnets with Sphalerite from Mexico

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SWJ0050 - Exceedingly Rare Andradite Garnets with Sphalerite from Mexico

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Species
Andradite Garnet + Sphalerite
Age
-
Location
Santa Cruz, Sonora (Mexico).
Formation
Santa Cruz Mining District
Size
72×60×28 mm   •    in
Weight
186 g   •    oz
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Description
Scientific name: Andradite + Sphalerite

Location: Santa Cruz Mining District, Santa Cruz, Sonora (Mexico).

Size/Weight: 72 x 60 x 28mm - 186g

REF.: SWJ0050

DESCRIPTION:
Exceedingly rare association from this rare location. Quite limited stuff. Very uncommon.

Andradite is a mineral species of the garnet group. It is a nesosilicate, with formula Ca3Fe2Si3O12.

Andradite includes three varieties:

Melanite: Black in color, referred to as "titanian andradite".
Demantoid: Vivid green in color, one of the most valuable and rare stones in the gemological world.
Topazolite: Yellow-green in color and sometimes of high enough quality to be cut into a faceted gemstone, it is rarer than demantoid.
It was first described in 1868 for an occurrence in Drammen, Buskerud, Norway. Andradite was named after the Brazilian statesman, naturalist, professor and poet José Bonifácio de Andrada e Silva (1763–1838).
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