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Paraniite-(Y) In Powellite

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Paraniite-(Y) In Powellite

Rare Mineral

Description Tabs

Description
Locality: 
Fianel, Ausserferrera, Ferrera Valley, Hinterrhein, Grisons, Switzerland
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
1 × 1.4 × 1 cm
Description

A unique occurrence from the Fianel manganese mine, a quartz-dolomite breccia hosts a Be-W-REE mineralization. Yellow, strongly fluorescent powellite-scheelite grains bear microscopic inclusions of the extremely rare mineral paraniite-(Y) hiding in microfractures. Individual paraniite-(Y) crystals are in the micron size range and impossible to see visually, but we confirmed their presence in this vein by SEM analysis in a polished section.

Mineral Data
What's on the rock

Paraniite-(Y)

Formula: 
Ca2Y(AsO4)(WO4)2
Strunz: 
7.GA.15
Crystal System: 
Tetragonal
Hardness: 
0.0
Type Locality: 
Mt Cervandone (Scherbadung; Cherbadung), Devero Alp, Baceno, Devero Valley, Antigorio Valley, Ossola Valley, Verbano-Cusio-Ossola Province, Piedmont, Italy

Powellite

Formula: 
Ca(MoO4)
Strunz: 
7.GA.05
Crystal System: 
Tetragonal
Hardness: 
3.5 - 4.0
Type Locality: 
Peacock Mine (South Peacock; Darland; Peacock & South Peacock), Cuprum, Seven Devils District, Adams Co., Idaho, USA

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