Epidote

specimen number:
2133174

location:
Thompson Peak, Plumas Co., California, USA

description:
Almost fibrous cluster of green crystallized epidote. Collected by Chuck Trantham in 1987.

Thompson Peak in California is associated with metamorphic and hydrothermal mineralization within mountainous terrain influenced by intrusive igneous activity. The geology of the area includes metamorphosed volcanic and sedimentary rocks that have been altered by heat and fluid movement, creating conditions favorable for the formation of minerals such as epidote. Epidote at Thompson Peak typically occurs as green prismatic crystals and granular masses within veins and altered host rock, often associated with quartz and other secondary minerals. These minerals formed as a result of hydrothermal fluids reacting with the surrounding rock, leading to chemical changes and recrystallization.

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