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Römerite Krausite & Coquimbite

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TBM1091631

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Description
Locality: 
Monte Arsiccio Mine, Sant'Anna di Stazzema, Stazzema, Lucca Province, Tuscany, Italy
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
3 × 4.5 × 2 cm
Largest Crystal: 
1.70cm
Weight: 
15.00gr
Description

Very nice brown Römerite crystals up to 17 mm with deep purple Coquimbite crystals up to 13 mm on light-brown Krausite cluster crystals up to 2 mm. Minerals analyzed

Mineral Data
What's on the rock

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

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

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€10
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Start 03 Jan 18:00
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Shipping Information

Postage Area Price
ITALY
€9.50
EUROPE ( AREA 1)
€13.50
AMERICAN - UK - ASIA - AFRICA - OCEANIA ( AREA 2/3):
€11

Bid History

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