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Nuummite Gedrite Anthophyllite

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LKM986448

Nuummite Gedrite Anthophyllite

ex. Dr. Konnunaho collection
Rare Mineral

Description Tabs

Description
Locality: 
Perniö, Southwest Finland, Finland
Class: 
Massive/Crystalline
Size Range: 
Cabinet (10-18 cm)
Size: 
8 × 13 × 10 cm
Weight: 
890.00gr
Description

Coarse grained iridescense Nuumite (i.e., gedrite+anthophyllite) rock from Finland. One side has been cut by diamond saw for display purpose. 

Mineral Data
What's on the rock

Nuummite

Mixture Of: 

Anthophyllite

Formula: 
☐{Mg2}{Mg5}(Si8O22)(OH)2
Strunz: 
9.DE.05
Hardness: 
5.5 - 6.0

Gedrite

Formula: 
☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Strunz: 
9.DD.05
Hardness: 
5.5 - 6.0

Gedrite

Formula: 
☐{Mg2}{Mg3Al2}(Al2Si6O22)(OH)2
Strunz: 
9.DD.05
Hardness: 
5.5 - 6.0
Streak: 
White
Type Locality: 
Gèdres, Héas valley, Luz-Saint-Sauveur, Hautes-Pyrénées, Midi-Pyrénées, France

Anthophyllite

Formula: 
☐{Mg2}{Mg5}(Si8O22)(OH)2
Strunz: 
9.DE.05
Crystal System: 
Orthorhombic - Dipyramidal
Hardness: 
5.5 - 6.0
Type Locality: 
Kjennerudvann Anthophyllite Prospect, Kjennerudvann, Kongsberg, Buskerud, Norway

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