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Calcite & Chalcedony

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NST693220

Calcite & Chalcedony

Description Tabs

Description
Locality: 
Weitendorf, Wildon, Graz, Styria, Austria
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.3 × 3.9 × 2.9 cm
Description

An older example of yellowish Calcite on a crust of Calcedony from Weitendorf basalt quarry. Comes with a handwritten 20th century label of german dealer Herbert Maucher, Munich.

Mineral Data
What's on the rock

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

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
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