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Oxo-magnesio-hastingsite

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ESM880328

Oxo-magnesio-hastingsite

Description Tabs

Description
Locality: 
Radersberg, Bruck-Dreis, Daun, Eifel, Rhineland-Palatinate, Germany
Class: 
Single Crystal
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 2.5 × 1 cm
Description

A lustrous rounded black oxo-magnesio-hastingsite crystal

Mineral Data
What's on the rock

Oxo-magnesio-hastingsite

Formula: 
NaCa2(Mg2Fe3+3 )(Al2Si6)O22O2
Hardness: 
6.0 - 0.0
Colour: 
Brown
Streak: 
White
Type Locality: 
Deeti volcanic cone, Gregory Rift, Rift Valley Province, Kenya