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Aluminocopiapite With Pickeringite

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SHS28243

Aluminocopiapite With Pickeringite

ex. Collection Georg Gebhard (Germany)

Description Tabs

Description
Locality: 
Vulcano Island, Messina Province, Sicily, Italy
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.4 × 5.4 × 3.4 cm
Description

Yellow aluminocopiapite crystals with white pickeringite crystals

Mineral Data
What's on the rock

Aluminocopiapite

Formula: 
Al2/3Fe3+4(SO4)6(OH)2·20H2O
Strunz: 
7.DB.35
Crystal System: 
Triclinic
Hardness: 
2.0 - 3.0
Streak: 
no data
Type Locality: 
Mosquito Fork, Forty Mile River, Southeast Fairbanks Borough, Alaska, USA

Pickeringite

Formula: 
MgAl2(SO4)4·22H2O
Strunz: 
7.CB.85
Hardness: 
1.5 - 2.0
Type Locality: 
Cerros Pintados ("Cerro Pintados"), Pampa del Tamarugal, El Tamarugal Province, Tarapacá Region, Chile...