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Siderite Quartz Chalcopyrite

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RBR911208

Siderite Quartz Chalcopyrite

Description Tabs

Description
Locality: 
Morro Velho Mine, Nova Lima, Minas Gerais, Brazil
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 4.5 × 2.5 cm
Description

A very nifty and sculptural combination miniature from this famous gold mine. The dramatic cluster attached to the very glassy sharply terminated quartz crystal includes classic, golden-brown siderite rhombs and a colorful chalcopyrite crystal in the middle. Classic older combination material from the 1960s or 1970s.

Mineral Data
What's on the rock

Siderite

Formula: 
FeCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.5
Streak: 
White

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Chalcopyrite

Formula: 
CuFeS2
Strunz: 
2.CB.10a
Crystal System: 
Tetragonal
Hardness: 
3.5 - 4.0

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