Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Voltaite Römerite Halotrichite & Copiapite

Views:
Watches:
ESM686496

Voltaite Römerite Halotrichite & Copiapite

Description Tabs

Description
Locality: 
Plaka Mines, Plaka, Lavrion District, Attiki Prefecture, Greece
Class: 
Combination
Size Range: 
Thumbnail (1-3cm)
Size: 
1.3 × 2.7 × 1.3 cm
Description

Black voltaite crystals with brown römerite, white halotrichite fibres (and yellow copiapite?)

Mineral Data
What's on the rock

Voltaite

Formula: 
K2Fe2+5Fe3+3Al(SO4)12·18H2O
Strunz: 
7.CC.25
Hardness: 
3.0 - 3.5
Type Locality: 
Solfatara di Pozzuoli, Pozzuoli, Phlegrean Fields, Naples Province, Phlegrean Volcanic Complex, Campania, Italy

Römerite

Formula: 
Fe2+Fe3+2(SO4)4·14H2O
Strunz: 
7.CB.75
Hardness: 
3.0 - 3.5
Type Locality: 
Rammelsberg Mine, Rammelsberg, Goslar, Harz, Lower Saxony, Germany

Halotrichite

Formula: 
FeAl2(SO4)4·22H2O
Strunz: 
7.CB.85
Hardness: 
1.5 - 2.0
Streak: 
White

Copiapite

Formula: 
Fe2+Fe3+4(SO4)6(OH)2·20H2O
Strunz: 
7.DB.35
Hardness: 
2.5 - 3.0
Type Locality: 
Copiapó Province, Atacama Region, Chile
Item Toolbox