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Tinsleyite

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BCK123717

Tinsleyite

Type Locality

Description Tabs

Description
Locality: 
Tip Top Mine, Fourmile, Custer County, South Dakota, United States of America
Size Range: 
Thumbnail (1-3cm)
Size: 
1.3 × 1.3 × 0.8 cm
Description

A small matrix piece with several small deep purple to almost black tinsleyite crystals. Collected by Steve and Janet Cares and confirmed at the Royal Ontario Museum. From my personal Tip Top collection.

Mineral Data
What's on the rock

Tinsleyite

Formula: 
KAl2(PO4)2(OH)·2H2O
Strunz: 
8.DH.10
Hardness: 
5.0
Type Locality: 
Tip Top Mine (Tip Top pegmatite), Fourmile, Custer District, Custer Co., South Dakota, USA

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