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Juansilvaite & Lavendulan

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SKY602618

Juansilvaite & Lavendulan

Type Locality

Description Tabs

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

Pink crystals of the extremely rare new mineral juansilvaite (IMA 2015-080) on a contrasting matrix and associated to blue lavendulane.

Only one locality known worldwide !!

Very nice under the microscope !

Mineral Data
What's on the rock

Juansilvaite

Formula: 
Na5Al3[AsO3(OH)]4[AsO2(OH)2]2(SO4)2·4H2
Crystal System: 
Monoclinic
Type Locality: 
Torrecillas Mine, El Tamarugal Province, Tarapacá Region, Chile

Lavendulan

Formula: 
NaCaCu5(AsO4)4Cl·5H2O
Strunz: 
8.DG.05
Hardness: 
2.5
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

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