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Willemite Mimetite & Goethite

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ADR957802

Willemite Mimetite & Goethite

Fluorescent

Description Tabs

Description
Locality: 
Preguiça Mine, Sobral da Adiça, Moura, Beja District, Portugal
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.8 × 4.5 × 4.3 cm
Weight: 
51.00gr
Description

Magnificent aggregate of prismatic crystals, with an acicular section, usually hexagonal, of willemite from the Portuguese mine "Preguiça", a silicate with a trigonal crystalline system, vitreous luster, white, transparent or translucent, that shares a matrix with yellow mimetite crystals in small groups scattered throughout the piece, as well as beautiful reddish goethite nodular crystallizations. A beautiful piece that normally reacts to UV rays.

Mineral Data
What's on the rock

Willemite

Formula: 
Zn2SiO4
Strunz: 
9.AA.05
Hardness: 
5.5
Streak: 
White
Type Locality: 
Vieille Montagne (Altenberg; Kelmisberg), Moresnet, Kelmis, Plombières-Vieille Montagne District (Plombières-Altenberg), Verviers, Liège Province, Belgium

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

Goethite

Formula: 
α-Fe3+O(OH)
Strunz: 
4.00.
Crystal System: 
Orthorhombic
Hardness: 
5.0 - 5.5
Type Locality: 
Hollertszug Mine (Hollerter Zug Mine), Dermbach, Herdorf, Siegerland, Rhineland-Palatinate, Germany

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

Thank you for visiting our shop.

- Pieces will be sent 48/72 hours after the payment is received.

- All of our shipments, will be done by secured mail & Track Number.

- Shipping fees does not include insurances, import duties, taxes or charges. Check with your country´s custom border. In case you want to ensure you order contact with us.

- Every mineral will be nicely packed and labelled.

- Multiple purchases will have discount on shippings if it is possible due to the weight of the pieces.

- Colour may vary due to the camera sensor.