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ACTINOLITE SPECIMENS
Actinolite is a green mineral from the amphibole group, typically found in metamorphic rocks and known for its fibrous to columnar crystal structure. Its color varies from pale to dark green, influenced by its iron content, and it displays a glassy to silky luster. Actinolite forms as long, slender crystals or needle-like fibers, often producing a fibrous or radial pattern within the host rock. Chemically, it is a calcium magnesium iron silicate with the formula Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂.
This mineral is also noteworthy for its connection to jade, specifically nephrite jade, as it shares a similar composition and structure. Actinolite’s striking green color and unique crystal forms make it a prized specimen in mineral collections. However, caution is necessary with fibrous varieties, as they are classified as asbestiform minerals and may pose health risks if inhaled. Non-fibrous types, on the other hand, are safe and occasionally used in jewelry and ornamental carvings.
This mineral is also noteworthy for its connection to jade, specifically nephrite jade, as it shares a similar composition and structure. Actinolite’s striking green color and unique crystal forms make it a prized specimen in mineral collections. However, caution is necessary with fibrous varieties, as they are classified as asbestiform minerals and may pose health risks if inhaled. Non-fibrous types, on the other hand, are safe and occasionally used in jewelry and ornamental carvings.
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