Rockhounding in Pennsylvania – What Rocks You Can Find and Where
Explore Rockhounding in Pennsylvania
Author: Celeste
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Muscovite Mica Streak: White Hardness: 2 – 2.5 Chemical Formula: KAl2(AlSi3O10)(F,OH)2 Muscovite is the most common mineral of the mica family. It is an important rock-forming mineral present in igneous, metamorphic, and sedimentary rocks. Like other micas it readily cleaves into thin transparent sheets. Muscovite sheets have a pearly to vitreous luster on their surface….
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Upcoming Rockhounding Events in West Virginia Bituminous Coal Hardness: 2 – 2.5 Streak: Black Chemical Formula: C137H97O9NS Bituminous Coal is one of the four recognized varieties of coal. It is the most abundant and it frequently used for heat generation, but it not as efficient as Anthracite Coal which is the highest grade of coal….
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