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Igneous

Red, Purple or Roman Imperial Porphyry rock
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Purple, Red, or Roman Imperial Porphyry

Purple, red, or Roman Imperial porphyry refers to reddish to purplish porphyritic rocks highly-priced during the antiquity age by Romans

Categories Rocks
Calciocarbonatite or sövite one of the varieties of carbonatites
Home » Igneous

Carbonatites Composition and Formation

Carbonatites are uncommon and strange igneous rocks with more than 50% carbonate minerals by volume and less than 20 wt.

Categories Rocks
Dunite, a coarse-grained greenish ultramafic plutonic rock
Home » Igneous

Dunite Rock Composition and Uses

Dunite is an ultramafic plutonic or intrusive igneous rock in which olivine exceeds 90% by volume. Ultramafic means it has

Categories Rocks
Pyroxenite rock
Home » Igneous

Pyroxenite Rock Composition and Formation

Pyroxenite is coarse-grained ultramafic, mostly plutonic rock. Ultramafic means they have at least 90% dark-colored minerals rich in iron and

Categories Rocks
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