Minerals & Rocks
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Marble
Read more: MarbleMarble is a metamorphic rock that belongs to the non-foliated class, meaning it lacks a layered or banded appearance. Formed from the metamorphism of limestone …
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Quartzite
Read more: QuartziteQuartzite is a non-foliated metamorphic rock that originates from the metamorphism of pure quartz sandstone. Known for its remarkable hardness and durability, quartzite typically displays …
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Hornfels
Read more: HornfelsHornfels is a non-foliated metamorphic rock characterized by its fine-grained, dense, and hard texture. This rock type forms under high-pressure and moderate-temperature conditions during the …
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Greenstone
Read more: GreenstoneGreenstone is a metamorphic rock that belongs to the greenschist facies, a sub-class of low-grade metamorphic rocks. It is characterized by its greenish hue, which …
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Granulite
Read more: GranuliteGranulite is a high-grade metamorphic rock, belonging to the granulite facies, that forms under extreme heat and pressure within the Earth’s crust. This rock exhibits …
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Anthracite
Read more: AnthraciteAnthracite is a type of metamorphic rock that belongs to the coal family, ranking as the highest-grade coal due to its high carbon content and …
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Slate
Read more: SlateSlate is a fine-grained metamorphic rock derived from shale, a sedimentary rock composed of clay minerals. It is characterized by its planar, foliated structure, which …
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Schist
Read more: SchistSchist is a medium to coarse-grained metamorphic rock characterized by its pronounced foliation and the presence of abundant, platy or elongated minerals. It belongs to …
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Gneiss
Read more: GneissGneiss is a high-grade metamorphic rock characterized by its distinct banding, which results from the segregation of its mineral components into light and dark layers. …
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Phyllite
Read more: PhyllitePhyllite is a metamorphic rock that falls between slate and schist in terms of metamorphic grade. Belonging to the foliated metamorphic rock class, phyllite displays …
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