Diorite

Diorite

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Gabbro rock hand sample showing coarse-grained phaneritic texture with dark pyroxene and light plagioclase crystals.

Gabbro

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Granite

Granite

2
Serpentine

Why Do Serpentinites Produce Magnetic Anomalies?

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In exploration geology and airborne magnetic surveys, some of the most distinct and intense positive anomalies are generated by ultramafic rocks, specifically serpentinites. The...
Bornite

Bornite

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What is Bornite? The Most Spectacular and High-Grade Copper Ore While chalcopyrite is the main source of copper globally, no copper mineral is as high-grade,...
Chalcopyrite

Chalcopyrite

1
What is Chalcopyrite? The World's Most Important Copper Ore Chalcopyrite is the most abundant copper ore mineral and the primary source of copper production worldwide....
Chert

Chert

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The Ultimate Guide to Chert: Formation, Properties, and Exploration Significance To the ancient world, it was the ultimate tool-making material. To a modern exploration geologist,...
dolomite

Dolomite

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The Complete Guide to Its Properties, Formation, and Economic Significance In the realm of earth sciences, the term "dolomite" is uniquely dual-purpose: it refers both...