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The top documents tagged [porphyritic rock]
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porphyritic rock
The Geo-Chemistry of Igneous Rocks
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Order of crystallisation & enclaves It has long been common to work out the sequence in which the minerals in an igneous rock began and/or ceased to crystallise.
213 views
Ch 3 Review Volcanoes & Extrusives. What’s the difference between magma and lava?
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Order of crystallisation & enclaves
37 views
Aesthetic 25mm specimen of native Copper with some micro Cuprite crystals.
213 views
Chapter 3 – 2 Igneous Rocks!
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