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Chalcedony & Baryte

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BMM741735

Chalcedony & Baryte

Description Tabs

Description
Locality: 
Frohnau, Annaberg-Buchholz, Erzgebirge, Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 6 × 5.5 cm
Description

Pale blue and violet blue chalcedony on light brown barite matrix. The chalcedony is grape-shaped and shows a silky gloss. The specimen stands in the displayed position without any support (second photo). Very rare for this Saxony locality - undamaged!

Mineral Data
What's on the rock

Chalcedony

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0
Hardness: 
6.5 - 7.0
Streak: 
White
Type Locality: 
Kadıköy (Chalcedon), Istanbul Province, Marmara Region, Turkey

Baryte

Formula: 
BaSO4
Strunz: 
7.AD.35
Hardness: 
3.0 - 3.5
Streak: 
White