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Amethyst

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MGR982385

Amethyst

Description Tabs

Description
Locality: 
Iraí, Rio Grande do Sul, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.7 × 3.9 × 0.7 cm
Description

Beautiful cut and polished section of an amethyst stalactite from Irai in Brazil. The orange to reddish center of the specimen is framed in intense green chalcedony, followed by an outer ring of translucent purple amethyst crystals.

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