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Apophyllite

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LGM146538

Apophyllite

Ex Dr. Krantz, Bonn, Germany
With Antique Label

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Description Tabs

Description
Locality: 
Sennotani Mine, Ohara, Toyama City, Toyama Prefecture, Honshu Island, Japan
Size Range: 
Cabinet (10-18 cm)
Size: 
6 × 10 × 3 cm
Description

Light green apophyllite crystals with glassy to silky luster on volcanic rock. With nice antique Dr. Krantz label. However, I'm not sure about the locality because Ohara and Miyagi Pref. don't fit together in my investigations.
Weight: 130 grams

Mineral Data
What's on the rock

Apophyllite

Synonym Of: 

Fluorapophyllite-(K)

Formula: 
KCa4(Si8O20)(F,OH)·8H2O
Strunz: 
9.EA.15
Hardness: 
4.5 - 5.0

Fluorapophyllite-(Na)

Formula: 
NaCa4(Si8O20)F·8H2O
Strunz: 
9.EA.15
Hardness: 
4.0 - 5.0

Hydroxyapophyllite-(K)

Formula: 
KCa4(Si8O20)(OH,F)·8H2O
Strunz: 
9.EA.15
Hardness: 
4.0 - 5.0

Seller Information

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