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Gahnite & Hendricksite

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BCK678442

Gahnite & Hendricksite

George Elling collection
Classic Locality

Description Tabs

Description
Locality: 
Franklin Mine, Franklin, Sussex County, New Jersey, United States of America
Class: 
Crystal Group/Cluster
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.1 × 6.1 × 3.2 cm
Description

You are bidding on a large sample with a nice group of gahnite octahedrons in ore all on a very large sheet of hendricksite crystals. Very good sample of both species!

Mineral Data
What's on the rock

Gahnite

Formula: 
ZnAl2O4
Strunz: 
4.BB.05
Crystal System: 
Isometric
Hardness: 
7.5 - 8.0
Streak: 
Grey
Type Locality: 
Falun mine, Falun, Dalarna, Sweden

Hendricksite

Formula: 
K(Zn,Mg,Mn2+)3(AlSi3O10)(OH)2
Strunz: 
9.EC.20
Hardness: 
0.0
Type Locality: 
Buckwheat pit (Southwest opening; Buckwheat Mine), Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA

Seller Information

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