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Yavapaiite Alcaparrosaite Krausite & Coquimbite

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Yavapaiite Alcaparrosaite Krausite & Coquimbite

Rare Mineral

Description Tabs

Description
Locality: 
Alcaparrosa Mine, Sierra Gorda, Antofagasta Province, Antofagasta Region, Chile
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 4 × 2 cm
Description

This is the new Chilean species: alcaparrosaite (IMA 2011-024): K3Ti4+Fe3+(SO4)4O(H2O)2 mon C2/c 7.5594 16.7923 12.1783 90.00 94.076 90.00 It is the first sulphate Ti(IV) and It was formed as a result of the oxidation of sulfide.
It comes in yellow crystals of tabular on coquimbite. Ref.: ? Williams, P. (2011): Stamp collecting. Elements, 7, 215. In this piece there are a vugs with alcaparrosaite tabular crystals yellow light colour ad others with cubic green crystals of Zn-pertiklite with purple coquimbite transparent Yavapayite crystals and milk Krausite.

Mineral Data
What's on the rock

Yavapaiite

Formula: 
KFe(SO4)2
Strunz: 
7.AC.15
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.0
Type Locality: 
United Verde Mine (The Big Hole; Big Hole property; Hull Mine; Hopewell tunnel; Patented claim 3480; Patented claim 2812; Patented claims 3348), Jerome, Verde District, Black Hills (Black Hill Range), Yavapai Co., Arizona, USA

Alcaparrosaite

Formula: 
K3Ti4+Fe3+(SO4)4O(H2O)2
Hardness: 
0.0
Type Locality: 
Alcaparrosa Mine, Cerritos Bayos, Antofagasta Region, Chile

Krausite

Formula: 
KFe(SO4)2·H2O
Strunz: 
7.CC.05
Crystal System: 
Monoclinic
Hardness: 
2.5
Streak: 
White
Type Locality: 
Sulphur Hole (Sulfur Hole; Sulphur pit), Mule Canyon, Yermo, Calico District (Daggett District), Calico Mts (Calico Hills), San Bernardino Co., California, USA

Coquimbite

Formula: 
Fe2-xAlx(SO4)3·9H2O, x ~0.5
Strunz: 
7.CB.55
Hardness: 
2.5
Streak: 
white
Type Locality: 
Coquimbo Region, Chile

Seller Information

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