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Torrecillasite

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JYJ626553

Torrecillasite

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Description
Locality: 
Torrecillas Mine, Salar Grande, Iquique Province, Tarapacá Region, Chile
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 1.7 × 1.5 cm
Description

Filigrane torrecillasite with claudetite and arsenolite in native arsenic. Rare mineral, type locality!

 

References:

 

Kampf, A.R., Nash, B. and Dini, M. (2014) Torrecillasite, IMA 2013-112. CNMNC Newsletter No. 19, February 2014, page 168; Mineralogical Magazine, 78, 165-170.; Kampf, A., Nash, B., Dini, M., Molina Donoso, A. (2014): Torrecillasite, NaAs4O6Cl, a new mineral from the Torrecillas mine, Iquique Province, Chile: description and crystal structure. Mineralogical Magazine, 78, 747-755.; Kampf, A.R., Nash, B.P., Dini, M., Molina Donoso, A.A. (2016): Chongite, Ca3Mg2(AsO4)2(AsO3OH)2·4H2O, a new arsenate member of the hureaulite group from the Torrecillas mine, Iquique Province, Chile. Mineralogical Magazine, 80, (in press).

Mineral Data
What's on the rock

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