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Sanbornite & Gillespite

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SKY912501

Sanbornite & Gillespite

Rare Mineral

Description Tabs

Description
Locality: 
Mariposa County, California, United States of America
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
1.2 × 1.2 × 1 cm
Description

White crystal group of sanbornite associated to minoritary very dark brown gillespite from Mariposa Co.

Ex Vandenbroucke Museum collection from Waregem, Belgium

Mineral Data
What's on the rock

Sanbornite

Formula: 
Ba2(Si4O10)
Strunz: 
9.EF.10
Hardness: 
5.0
Type Locality: 
Trumbull Peak Ba-silicate deposit, Trumbull Peak, Clearing House, Clearing House District, East Belt, Mariposa Co., California, USA

Gillespite

Formula: 
BaFe2+[Si4O10]
Strunz: 
9.EA.05
Hardness: 
4.0
Type Locality: 
Dry Delta, Alaska Range, Yukon-Koyukuk Borough, Alaska, USA

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