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Agate Amethyst & Calcite

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MGR915133

Agate Amethyst & Calcite

Description Tabs

Description
Locality: 
Middle Class Mine, Xuanhua, Zhangjiakou, Hebei Province, China (Peoples Republic)
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.4 × 4.9 × 2.8 cm
Description

This is very special material from a unique discovery - and it is perfect for agate collectors: not just a plate; it is a complete half-geode in perfect condition. The agate looks like a Mango, such a crazy orange! The vug is full with sharp, lustrous, dark purple amethyste crystals and as cherry on the cake there is an additional almost black calcite crystal on the amethystes (better visible in person).

Mineral Data
What's on the rock

Agate

Variety Of: 

Chalcedony

Hardness: 
6.5 - 7.0
Formula: 
SiO2
Hardness: 
0.0

Amethyst

Variety Of: 

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Hardness: 
7.0
Formula: 
SiO2
Hardness: 
0.0
Colour: 
Purple

Calcite

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