Geology Superstore
Geology Superstore


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Chalcocite is a soft (2.5 – 3 on Moh’s scale) copper sulphide mineral from mexico. The specimens are in a massive form, meaning the crystals are too small to see any crystal habit. However, the specimens still exhibit a metallic lustre. Available in various sizes.

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Chalcocite specimens from Mexico. Chalcocite is a silver coloured mineral specimen with a metallic lustre and in the case of these pieces, a crystalline massive form. It is a copper sulphide mineral, making it a major source for copper ore, with the name actually being derived from the Greek word ‘khalkos’, meaning copper. Easily recognisable by its metallic appearance, it is actually quite soft,coming in at 2 to 3 on the Mohs scale of hardness index, meaning it can be scratched with just your finger nail. Chalcocite crystals tend to have an orthorhombic habit, but due to these specimens being a massive form, the crystals are too fine to see with out the aid of magnification. The mineral has been mined for centuries due to the fact that it is one of the best copper ores, with up to 80% of the material being able to be extracted as copper. Available in a range of sizes, the pieces will come supplied in a card tray or plastic magnifier box with an information label.

Weight 200 g
Specimen Size

1.5" x 1.5", 2" x 2", 4" x 3", Large Mag Box, Small Mag Box

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SKU: MIN-062 Categories: ,
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