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Liroconite Alleghanyite & Covellite

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BCK653640

Liroconite Alleghanyite & Covellite

Ted Bartels collection
Classic Locality

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Description
Locality: 
Sterling Hill, Ogdensburg, New Jersey, United States of America
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.1 × 5.2 × 3 cm
Description

You are bidding on a small sample with an incredibly rare crystal group of liroconite on matrix from Sterling Hill! This is a holy grail rarity from Sterling Hill and few samples are known! Associated with nice pink bladed crystals of alleghanyite, small willemite prisms and numerous covellite plates, some coated with small feathery sprays of serpierite. An incredible rarity from Sterling Hill that is very rarely offered for sale. From the Ted Bartels collection and Ewald Gerstmann stock. 

Mineral Data
What's on the rock

Liroconite

Formula: 
Cu2Al(AsO4)(OH)4·4H2O
Strunz: 
8.DF.20
Crystal System: 
Monoclinic
Hardness: 
2.0 - 2.5
Type Locality: 
Wheal Gorland, St Day United Mines (Poldice Mines), Gwennap, Camborne - Redruth - St Day District, Cornwall, England, UK

Alleghanyite

Formula: 
Mn2+5(SiO4)2(OH)2
Strunz: 
9.AF.45
Crystal System: 
Monoclinic
Hardness: 
5.5
Type Locality: 
Bald Knob, Sparta, Alleghany County, North Carolina, United States of America

Covellite

Formula: 
CuS
Strunz: 
2.CA.05a
Crystal System: 
Hexagonal
Hardness: 
1.5 - 2.0
Type Locality: 
Mt Vesuvius, Somma-Vesuvius Complex, Naples Province, Campania, Italy

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Start 13 May 18:00
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