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Römerite & Krausite

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SMM874784

Römerite & Krausite

Description Tabs

Description
Locality: 
Monte Arsiccio Mine, Sant'Anna di Stazzema, Stazzema, Lucca Province, Tuscany, Italy
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 5 × 7 cm
Weight: 
200.00gr
Description

Autstanding small-cabinet sample of romerite along with magnificent clusters of pale pink sharp crystals of krausite.
It is difficult to get a good idea with the photos of this incredible floater-cluster of sparkling crystals. Some romerite crystals are over 2 cm in size and are transparent glassy dark reddish brown.
The crystals of krausite individually reach 4 mm in length.

This specimen, due to its richness, beauty and crystal size, is undoubtedly one of the best specimens of these two species that derives from the discovery of about two years ago. Hardly repeatable.

"Personal Selection"

Boxed with Label
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

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