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Oxo-magnesio-hastingsite

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ZLT719585

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: 
4.8 × 3.2 × 3.2 cm
Description

Megacrystal of oxo-magnesio-hastingsite with lustrous surface. The crystal apperas molten but cleavige shows that this is not the case. The rounded shape is caused by etching (resorption).

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

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