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Franklinite & Zincite

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WND839478

Franklinite & Zincite

Rare Mineral - Type Locality
Classic Locality

Description Tabs

Description
Locality: 
Franklin Mine, Franklin, Sussex County, New Jersey, United States of America
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 4.6 × 3.6 cm
Description

Several, octahedral, black and waxy crystals of rare Franklinite accompanied by red-brown Zinkite, a typical association from Franklin New Jersey. For this two species Franklin is the type locality. The Franklinite is almost well developed, sharp and good terminated. This is a very good and rich specimen in splendid condition and comes with a fine old label. The Zinkite is mislabeled as Willemite!!!

Mineral Data
What's on the rock

Franklinite

Formula: 
Zn2+Fe3+2O4
Strunz: 
4.BB.05
Crystal System: 
Isometric
Hardness: 
5.5 - 6.0
Colour: 
Black
Type Locality: 
Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA

Zincite

Formula: 
(Zn,Mn2+,Fe2+)O
Strunz: 
4.AB.20
Crystal System: 
Hexagonal
Hardness: 
4.0
Type Locality: 
Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA
Wendel Minerals

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