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Fluornatrocoulsellite & Mimetite

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Fluornatrocoulsellite & Mimetite

Rare Mineral

Description Tabs

Description
Locality: 
Mount Vesuvius, Campania, Italy
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
0.9 × 1.8 × 1.8 cm
Description

From the recent investigations at the crater rim fossil fumaroles, a rich specimen of fluornatrocoulsellite as mounds of white, octaherdral microcrystals. Yellow needles of mimetite scattered here and there. Mt. Vesuvius is the third world locality for this unusual fluoride with pyrochlore structure.

Mineral Data
What's on the rock

Fluornatrocoulsellite

Formula: 
(Na1.5Ca0.5)(Mg1.5Al0.5)F6F
Group Parent: 
Pyrochlore Supergroup
Strunz: 
3.00.
Crystal System: 
Trigonal
Type Locality: 
Mt Cleveland Mine, Luina, Heazlewood district, Tasmania, Australia

Mimetite

Formula: 
Pb5(AsO4)3Cl
Strunz: 
8.BN.05
Crystal System: 
Hexagonal
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Treue Freundschaft Mine, Johanngeorgenstadt, Johanngeorgenstadt District, Erzgebirge, Saxony, Germany

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

We offer rare minerals to systematic collectors worldwide, doing our best to ensure accurate identification and provide adequate information and pictures.

Through extensive field search and contacts with trusted sources, we manage to provide the best in newly found species and classic type-locality minerals. Should your item prove to be different we offer an immediate refund of purchase.

Items may be returned within 15 days of receipt, please note that return costs are at customer's expense. We will issue refund as soon as we receive the item in unaltered condition.

Preferred payment is via Paypal, please follow instructions at ceckout and make payment to: [email protected] . If you don't have a Paypal account you can as well pay with your credit card following instructions for non-Paypal users.

Alternatively we accept bank transfer to: Roberto Bracco - bank: Intesa Sanpaolo - via Paleocapa 134/R - 17100 Savona, Italy.

IBAN code: IT79P0306910600100000067863 SWIFT code: BCITITMM

Cash and checks not accepted.

To contact us and ask questions about items on sale, please e-mail to: [email protected]  - phone: +39.3381058295. Returned items should be sent to: Roberto Bracco, piazza Monticello 12/2, 17100 Savona, Italy