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Amethyst & Calcite

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Amethyst & Calcite

Ex. Don Belsher

Description Tabs

Description
Locality: 
Guanajuato, Guanajuato Municipality, Guanajuato, Mexico
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 3.6 × 3.7 cm
Description

Lustrous, dark purple amethyst crystals with an overgrowth of scattered white calcite. The contrast is beautiful.

Ex. Don Belsher collection with several labels.

Mineral Data
What's on the rock

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
schani

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