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Macdonaldite & Sanbornite

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UVM858261

Macdonaldite & Sanbornite

Type Locality

Description Tabs

Description
Locality: 
Rush Creek, Fresno County, California, United States of America
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.3 × 3.6 × 1.9 cm
Description

Radiating white microcrystals of macdonaldite in a matrix of cleaved sanbornite.

Mineral Data
What's on the rock

Macdonaldite

Formula: 
BaCa4Si16O36(OH)2·10H2O
Strunz: 
9.EB.05
Crystal System: 
Orthorhombic
Hardness: 
3.5 - 4.0
Type Locality: 
Big Creek, Rush Creek deposit, Big Creek-Rush Creek District, Fresno Co., California, USA

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

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