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Amethyst

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MGR935706

Amethyst

Classic Locality

Description Tabs

Description
Locality: 
Amethyst Vein, Maissau, Waldviertel, Lower Austria, Austria
Class: 
Single Crystal
Size Range: 
Cabinet (10-18 cm)
Size: 
11.2 × 7.8 × 7.7 cm
Description

Great Austria classic, for long time the theory was that first discoveries go back to 1845. But after some archeological excavations in the last years we know that first finds were made about 2000 (!!!) years ago. The vein has a dimension of 0.5 - 1 m in thickness and a confirmed length of 400 m. The estimated length is 1000 m! This vein is provided in the "Maissauer Granit", a part of the Thayapluton. The locality is of highest relevance - the Amethyste from Maissau developed about 280 million years ago, one of the oldest amethyste on earth. Much more older than rock crystals from Alps for example (which are about 8 million years old). The particular specimen shows the typical style from Maissau - always one dark violet zoning between almost white zonings, the end-points again white. The front area was cut to show this effect.

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