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Pyrargyrite Parasymplesite & Stibarsen

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MNR616598

Pyrargyrite Parasymplesite & Stibarsen

Description Tabs

Description
Locality: 
Uranium Mine #7, Třebsko, Příbram, Central Bohemian Region, Czech Republic
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.3 × 3.1 × 1.8 cm
Description

Sample of dark red pyrargyrite prismatic crystals and presents also rich blue-green acicular rosettes of parasymplesite all over the sample. Matrix is mainly stibarsen with minor calcite.

Mineral Data
What's on the rock

Pyrargyrite

Formula: 
Ag3SbS3
Strunz: 
2.GA.05
Crystal System: 
Trigonal - Ditrigonal Pyramidal
Hardness: 
2.5

Parasymplesite

Formula: 
Fe2+3(AsO4)2·8H2O
Strunz: 
8.CE.40
Hardness: 
2.0
Type Locality: 
Kiura mine (Shin-Kiura mine; Kiura emery mine), Saiki City, Oita prefecture, Kyushu Region, Japan

Stibarsen

Formula: 
AsSb
Strunz: 
1.CA.05
Crystal System: 
Trigonal
Hardness: 
3.0 - 4.0
Streak: 
Gray
Type Locality: 
Varuträsk, Skellefteå, Västerbotten, Sweden