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Chalcedony

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MGR649452

Chalcedony

Description Tabs

Description
Locality: 
Hüttenberg, Sankt Veit an der Glan District, Carinthia, Austria
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.7 × 6.7 × 5.2 cm
Description

Hüttenberg is an old, historic mining area – iron was mined there. Really of relevance in it´s history – do you know boric iron? The high quality iron (ferrum noricum) , which was used for Roman Army came from Hüttenberg and Erzberg. First mentioned in old documents from 1266! But we know about mining even before the old Romans, so this is really a historic locality. Now more about the particular specimen: Siderite crystals are covered with botryoidal, lustrous spheres of chalcedony. They show a really good saturation of blue to lavender. No significant damages to report.

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