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Quartz Var Amethyst

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MGR653673

Quartz Var Amethyst

Description Tabs

Description
Locality: 
Mamuju Area, West Sulawesi, Indonesia
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.2 × 4.9 × 3.9 cm
Description

A well formed floater from recent discoveries in Indonesia. But this specimen shows an exceptional assemble, for sure it stands out of the crowd of common material from this important find. The spheres show peral-like luster. Very aesthetic assemble, looks great in various positions, no significant damages to report. Most of this material is labeled as "grape-agate" or "chalcedony", based on new analysis this material is amethyste.

Mineral Data
What's on the rock

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Amethyst

Variety Of: 

Quartz

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