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Legrandite & Köttigite

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BCK653637

Legrandite & Köttigite

Ted Bartels collection
Classic Locality

Description Tabs

Description
Locality: 
Sterling Hill, Ogdensburg, Sussex County, New Jersey, United States of America
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 4.1 × 3.1 cm
Description

You are bidding on a large sample with very good crystals(!) of legrandite in small vugs with associated light blue plates of kottigite/parasymplesite. This is a very rich sample of legrandite from Sterling Hill, with small but very sharp crystals for the locality matching the forms of the Ojuela Mine crystals. Very rare to find legrandite of this quality from Sterling Hill. Ted Bartels collection from Ewald Gerstmann stock. 

Mineral Data
What's on the rock

Legrandite

Formula: 
Zn2(AsO4)(OH)·H2O
Strunz: 
8.DC.10
Crystal System: 
Monoclinic
Hardness: 
4.5
Streak: 
White
Type Locality: 
Flor de Peña Mine, Lampazos de Naranjo (Lampazos), Mun. de Lampazos de Naranjo, Nuevo Leon, Mexico

Köttigite

Formula: 
Zn3(AsO4)2·8H2O
Strunz: 
8.CE.40
Crystal System: 
Monoclinic Prismatic crystals or crusts
Hardness: 
2.5 - 3.0
Type Locality: 
Daniel Mine (St. Daniel Mine), Neustädtel, Schneeberg District, Erzgebirge, Saxony, Germany

Seller Information

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