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Magadiite & Silhydrite

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SYA600704

Magadiite & Silhydrite

Type Locality

Description Tabs

Description
Locality: 
Watson Placer Mine, The Cedars, Trinity County, California, United States of America
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 4.5 × 3 cm
Description

A pure sample of chalky white magadiite intergrown with silhydrite.

Watson Creek is the type locality for silhydrite.

Mineral Data
What's on the rock

Magadiite

Formula: 
Na2Si14O29·11H2O
Strunz: 
9.EA.20
Hardness: 
2.0
Type Locality: 
Lake Magadi, South Rift Valley, Rift Valley Province, Kenya

Silhydrite

Formula: 
3SiO2·H2O
Strunz: 
4.FM.30
Hardness: 
1.0
Colour: 
White
Type Locality: 
Trinite Mining claim, Wildcat Peak, Halls Gulch District, Trinity Mts, Klamath Mts, Trinity Co., California, USA

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