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Estaurolita

Staurolite

Regular price
4,95€
Sale price
4,95€
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Chemical formula
(Fe 2+ ,Mg,Zn) 2 Al 9 (Si,Al) 4 O 22 OH 2
Crystalline System
Monoclinic
Class
Silicates
Origin Fanzeres, Portugal
Size Medium: 3.00-4.00 cm

Brown Staurolite crystals.

A special property of staurolite is that it is sometimes crystallized symmetrically, it can present penetrative twinning forming angles of 60° and 90°. The macroscopic crystals have a prismatic shape.

It is a specimen highly coveted by collectors for its beautiful twins. This crystal is also used to carve pieces that are very attractive to the eye.

    The piece you receive may differ slightly from the photo shown, since the minerals are natural and no pieces are identical. The size is approximate.