tremolite-ferroactinolite series
Quick Summary
The tremolite-ferroactinolite series consists of calcium, magnesium, and iron silicate minerals that are abundant in metamorphosed rocks like schists. Tremolite can alter into talc, while both tremolite and actinolite can change into chlorite or carbonates. The magnesium-rich varieties of this series are known as asbestos, characterized by fine, silky fibers with considerable tensile strength. These fibrous forms can be found as "mountain leather," "mountain cork," or "mountain wood" depending on their density and texture. Actinolite is the intermediate mineral in the tremolite-ferroactinolite series.12
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