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Orthoclase & Muscovite

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MNT153750

Orthoclase & Muscovite

ex J.J. Sasamoto
Classic Locality

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Description
Locality: 
Otaniyama Mine, Yamada-machi, Shimohei District, Iwate Prefecture, Honshu Island, Japan
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 2.8 × 2.5 cm
Description

Japanese minerals, particularly the older classics, are increasingly hard to obtain. This specimen is out of the Sasamoto collection at Krantz in Bonn, GER. A pegmatite small miniature specimen with beige coloured twinned orthoclase and some muscovite. Rare example with old label. The label states Otaniyama, Omi prefecture. Omi is nowadays the Shiga prefecture .... i suspect that the specimen comes from the miarolithic granites maybe connected with the occurrences aroung Tanakami Yama - some sources hint to the fact that both localities are the same or nearby.

Mineral Data
What's on the rock

Orthoclase

Formula: 
KAlSi3O8
Strunz: 
9.FA.30
Hardness: 
6.0
Streak: 
White

Muscovite

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

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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

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