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Milarite

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WND799273

Milarite

Rare Mineral, Ex Joachim Hennrich Collection
Type Locality

Description Tabs

Description
Locality: 
Giuv Valley, Tujetsch, Surselva Region, Grisons, Switzerland
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.8 × 3.4 × 1.7 cm
Largest Crystal: 
1.50cm
Description

This is probably the most rare specimen we ever offered in an auction. An enormous 1,5 cm crystal of rare beryllium-silicate milarite associated with many smaller crystals of the same species on matrix. The milarite is mostly gemmy, colourless and mirror bright, which caused big problems in producing meaningful pictures. The milarites are well developed as well, razor sharp and excellent terminated. This is a super alpine specimen in splendid condition.

Mineral Data
What's on the rock

Milarite

Formula: 
K2Ca4Al2Be4Si24O60·H2O
Strunz: 
9.CM.05
Hardness: 
6.0
Type Locality: 
Giuv Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden), Switzerland
Wendel Minerals

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