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Santite

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GFM617067

Santite

Rare Mineral

Description Tabs

Description
Locality: 
Eagle Borax Spring, Death Valley, Inyo County, California, United States of America
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
2.6 × 5.2 × 1 cm
Description

microcrystalline white aggregates, very rich together with colorless thenardite and halite. These are the finest known specimens of this extremely rare magnesium borate

Mineral Data
What's on the rock

Santite

Formula: 
K[B5O6(OH)4]·2H2O
Strunz: 
6.EA.10
Hardness: 
0.0
Type Locality: 
Larderello, Pomarance, Pisa Province, Tuscany, Italy