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Stilbite

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MNT168335

Stilbite

ex Dr. F. Krantz stock, ex Fritz Leitenberger (Bohemia)
Classic Locality

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Description
Locality: 
Tujetsch, Surselva Region, Grisons, Switzerland
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 3.8 × 3.2 cm
Description

Nice old timer from Tavetsch: tan whiteish well crystallized stilbite on matrix. One label is from bohemian mineral dealer Fritz Leitenberger from Leitmeritz, born 1857, died in 1910 (thanks Bernhard! :-) ). The second label is of a type i found more often meanwhile but i can not assign it until now. This label gives the date 11.7.1906. Possibly from Mila valley.

Mineral Data
What's on the rock

Stilbite

Synonym Of: 

Stilbite-Ca

Formula: 
NaCa4[Al9Si27O72]·nH2O
Strunz: 
9.GE.10
Hardness: 
3.5 - 4.0

Stilbite-Na

Formula: 
(Na,Ca,K)6-7[Al8Si28O72]·nH2O
Strunz: 
9.GE.10
Hardness: 
3.5 - 4.0
Hardness: 
3.5 - 4
Colour: 
White
Streak: 
White

Seller Information

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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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