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Anthophyllite Smaragdite

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MNR875405

Anthophyllite Smaragdite

Classic Locality

Description Tabs

Description
Locality: 
Věžná, Žďár nad Sázavou District, Vysočina Region, Czech Republic
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.6 × 4.8 × 3.2 cm
Largest Crystal: 
0.80cm
Description

Very nice specimen composed of yellow-brown anthophyllite crystals along with minor green smaragdite crystals.

Mineral Data
What's on the rock

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

Smaragdite

Variety Of: 

Actinolite

Formula: 
☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Strunz: 
9.DE.10
Hardness: 
5.0 - 6.0
Formula: 
Ca2(Mg,Fe2+)5Si8O22(OH)2
Hardness: 
0.0
Streak: 
white