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Cuatrocapaite-(NH4) & Torrecillasite

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JYJ767707

Cuatrocapaite-(NH4) & Torrecillasite

EDS conf. material

Description Tabs

Description
Locality: 
Torrecillas Mine, Salar Grande, Iquique Province, Tarapacá Region, Chile
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.7 × 2.3 × 2.3 cm
Description

Colourless pseudohexagonal cuatrocapaite-(NH4) associated with torrecillasite on native arsenic. EDS conf. material. 

 

Mineral Data
What's on the rock

Cuatrocapaite-(NH4)

Formula: 
(NH4)3(NaMg☐)(As2O3)6Cl6·16H2O
Crystal System: 
Trigonal
Colour: 
White
Type Locality: 
Torrecillas mine, Salar Grande, Iquique Province, Tarapacá Region, Chile

Torrecillasite

Formula: 
Na(As,Sb)3+4O6Cl
Hardness: 
2.5 - 0.0
Colour: 
Colorless
Streak: 
White
Type Locality: 
Torrecillas mine, Salar Grande, El Tamarugal Province, Tarapacá Region, Chile