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Tourmaline Var Buergerite

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LGM124448

Tourmaline Var Buergerite

ex Ring collection, Munich,Germany
Type Locality

Description Tabs

Description
Locality: 
Mexquitic de Carmona Municipality, San Luis Potosi, Mexico
Size Range: 
Small miniature (3-4.5 cm)
Size: 
2.5 × 3.5 × 1.7 cm
Largest Crystal: 
0.70cm
Description

Buergerite is a rare tourmaline group species. Typical golden/bronze brown, double-ended crystals in-grown in rhyolithe matrix. According to mindat, this was a one-time find in the 60s and the exact mine is unknown.

Mineral Data
What's on the rock

Tourmaline

Formula: 
A(D3)G6(T6O18)(BO3)3X3Z
Crystal System: 
Trigonal
Hardness: 
7

Buergerite

Formula: 
Na(Fe33+)Al6(Si6O18)(BO3)3O3(OH)
Group Parent: 
Tourmaline

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