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Chalcedony On Hetaerolite

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KMF606381

Chalcedony On Hetaerolite

Classic Locality

Description Tabs

Description
Locality: 
Skorpion Mine, Karas Region, Namibia
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8 × 5 × 2.4 cm
Description

An impressive sparkling association with pretty coliform growth structures that are significantly elevated off the host matrix. The black spheroidal chained intergrowths consist of hetaerolite evident along peripherally contacted edges.

An attractive balance is struck between the zones of prolific chalcedony deposition and those only slightly coated telling of its in natural situ orientation.

This specimen is damage free.

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

Hetaerolite

Formula: 
ZnMn2O4
Strunz: 
4.BB.10
Hardness: 
6.0
Colour: 
Black
Type Locality: 
Passaic pit (Marshall Mine; Passaic Mine), Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA

Seller Information

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