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Orthoclase

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MNT637959

Orthoclase

ex Dr. F. Krantz, Bonn, GER; ex ?
Classic Locality

Description Tabs

Description
Locality: 
Tanakami-yama, Otsu City, Shiga Prefecture, Honshu Island, Japan
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.3 × 2.8 × 3.5 cm
Description

Japanese minerals, particularly the older classics, are increasingly hard to obtain. This specimen is out of an old suite of japanese feldspars at Krantz in Bonn, GER. Nicely developed crystals of orthoclase (or microcline) from the famous pegmatite district of the former Omi prefecture, now in the Shiga prefecture. There is a label with this specimen stating "Baveno Twin" but the twinning is IMHO Carlsbad twinning

Mineral Data
What's on the rock

Orthoclase

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