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Vesuvianite Var Idocrase

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MNT36364

Vesuvianite Var Idocrase

Ex Isaac Walker, Ex John Henry Heuland (rare)
Type Locality

Description Tabs

Description
Locality: 
Monte Somma, Vesuvius, Campania, Italy
Size Range: 
Small cabinet (7-10 cm)
Size: 
8.8 × 5.7 × 4.4 cm
Description

A nice old timer with pedigree: label comes from british collector  Isaac Walker (1793-1853) who got this one from heuland obviously (the 'H' on the label).

The specimen shows a highly lustrous vesuvianite crystal on the typical matrix with diverse silicate minerals.

Rare stuff from the Dr. F. Krantz stock.

Mineral Data
What's on the rock

Vesuvianite

Formula: 
(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Strunz: 
9.BG.35
Hardness: 
6.5
Streak: 
White
Type Locality: 
Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy

Idocrase

Renamed To: 

Vesuvianite

Formula: 
(Ca,Na,☐)19(Al,Mg,Fe3+)13(☐,B,Al,Fe3+)5(Si2O7)4(SiO4)10(OH,F,O)10
Strunz: 
9.BG.35
Hardness: 
6.5

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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