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Zinc-Schefferite Franklinite & Hardystonite

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SHS597065

Zinc-Schefferite Franklinite & Hardystonite

ex Collection Edgar Franz(Freiberg/Germany)

Description Tabs

Description
Locality: 
Franklin, Sussex County, New Jersey, United States of America
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 5 × 4.8 cm
Description

Zinkschefferite and franklinite and white hardistonite

Mineral Data
What's on the rock

Zinc-Schefferite

Variety Of: 

Diopside

Formula: 
CaMgSi2O6
Strunz: 
9.DA.15
Hardness: 
5.5 - 6.5
Formula: 
Ca(Mg,Mn,Zn)Si2O6
Hardness: 
5.0 - 6.0
Colour: 
Brown

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

Hardystonite

Formula: 
Ca2Zn(Si2O7)
Strunz: 
9.BB.10
Hardness: 
3.0 - 4.0
Streak: 
white
Type Locality: 
Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA