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Microcline & Muscovite

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MNT964697

Microcline & Muscovite

ex Dr. F. Krantz (Bonn, GER)
Classic Locality

Description Tabs

Description
Locality: 
Tanakami-yama, Otsu City, Shiga Prefecture, Honshu Island, Japan
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 3.6 × 2.9 cm
Weight: 
51.00gr
Description

Old time japanese specimen with silvery muscovite on potassium feldspar, probably microcline. Ex Dr. F. Krantz specimen. According to a specialist for japanese minerals this is from Tanakami-yama.

Mineral Data
What's on the rock

Microcline

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Crystal System: 
Triclinic - Pinacoidal
Hardness: 
6.0 - 6.5
Streak: 
White
Type Locality: 
Arendal, Aust-Agder, Norway

Muscovite

Formula: 
KAl2(AlSi3O10)(OH)2
Strunz: 
9.EC.15
Hardness: 
2.5
Streak: 
White

Seller Information

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Seller's terms and conditions

Terms & Conditions

Thank you for your interest in my offers! Payment is possible via Paypal, bank transfer or cash if you pick up the item(s) personally. Bank data will be provided after settling the auction/transaction(s) if needed.

In case you are not happy with a specimen, you may send it back within 4 weeks. After receipt, i will refund the price minus shipping costs. Please inform me before sending an item back. If you have any questions (or maybe complaints) please feel free to contact me.

Best regards Roger