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Lennilenapeite & Magnetite

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BCK577743

Lennilenapeite & Magnetite

Type Locality

Description Tabs

Description
Locality: 
Franklin Mine, Franklin, Sussex County, New Jersey, United States of America
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.4 × 0.9 cm
Description

You are bidding on a small sample with a fracture surface lined with blackish-green, scaly lennilenapeite and hundreds of sharp magnetite crystals. 

Mineral Data
What's on the rock

Lennilenapeite

Formula: 
K6-7(Mg,Mn,Fe,Zn)48(Si,Al)72(O,OH)216·16H2O
Strunz: 
9.EG.40
Hardness: 
3.0
Type Locality: 
Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA

Magnetite

Formula: 
Fe2+Fe3+2O4
Strunz: 
4.BB.05
Crystal System: 
Isometric
Hardness: 
5.5 - 6.5
Streak: 
Black

Seller Information

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