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Natrolite

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MNT72414

Natrolite

ex Charles Ottley Groom-Napier (M&M), ex ?
Classic Locality

Description Tabs

Description
Locality: 
Puy-de-Dôme, Auvergne-Rhône-Alpes, France
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 3.2 × 2 cm
Description

An example of quite thick natrolite crystals with well developed terminations in a vug of basaltoid matrix. The label attached on the backside attributes the specimen to the Auvergne, France. The Groom-Napier (M&M) label - as quite often - assigns it to a completely different location (Nova Scotia). Re-labeling localities is a recurring pattern with M&M specimens.

This supports the notion that Charles Ottley Groom-Napier was a fraudster as is reported by different sources. The specimen is almost for sure from Puy de Marmant, Veyre-Monton, Puy-de-Dôme wrt the habit.

Mineral Data
What's on the rock

Natrolite

Formula: 
Na2Al2Si3O10·2H2O
Strunz: 
9.GA.05
Hardness: 
5.0 - 5.5
Streak: 
White
Type Locality: 
Hohentwiel, Singen, Hegau, Baden-Württemberg, Germany

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

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