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Polybasite With Acanthite

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LGM734608

Polybasite With Acanthite

Ex Émile Deyrolle, Paris, France
With Antique Label

Description Tabs

Description
Locality: 
Freiberg, Mittelsachsen, Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 3.5 × 3 cm
Weight: 
100.00gr
Description

Historic Freiberg specimen featuring polybasite and acanthite in an ore vein.

Comes with original box and amazing Émile Deyrolle label.
Émile Deyrolle was a 19th-century Paris dealer in natural history specimens and taxidermy. The earliest and rarest Deyrolle mineral labels show Émile at what is perhaps the original address where his naturalist grandfather, Jean-Baptiste Deyrolle, first opened for business in 1831: 23, rue de la Monnaie. Jean-Baptiste's son Achille Deyrolle took over the business for many years, following which his son Émile took over in 1866. The fourth generation of the family, Émile Deyrolle's sons, altered the company name to "Les Fils d'Émile Deyrolle" on the labels. They had taken over the business by 1896.

Mineral Data
What's on the rock

Polybasite

Formula: 
[(Ag,Cu)6(Sb,As)2S7][Ag9CuS4]
Strunz: 
2.GB.15
Crystal System: 
Monoclinic - Prismatic
Hardness: 
2.5 - 3.0
Streak: 
black

Acanthite

Formula: 
Ag2S
Strunz: 
2.BA.35
Crystal System: 
Monoclinic - Prismatic
Hardness: 
2.0 - 2.5
Streak: 
lead grey
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

Thank you for viewing my auctions! Maintaining high standards in customer service is extremely important to me. If shipping takes longer than expected, please contact me. It is possible to file an investigation request, and during nearly ten years of e-rocks NO parcel was finally lost.

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I will happily do all in my power to resolve the situation to your satisfaction.

+++IMPORTANT+++
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Within EU countries, bank transfer is also possible but not mandatory. I will offer free shipping or a discount in some cases. Please ask after receiving your invoice.