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单词 actinolite
释义

actinolite

/akˈtɪnəlʌɪt /
noun [mass noun]
A green mineral of the amphibole group containing calcium, magnesium, and iron and occurring chiefly in metamorphic rocks and as a form of asbestos.They have a mineralogical association of quartz, diopside, actinolite, plagioclase and K-feldspar....
  • Amosite, fibrous anthophyllite, fibrous tremolite, fibrous actinolite, and crocidolite are amphiboles, double-chain silicates, which observed microscopically look like sharp needles.
  • Kyanite, microcline, zircon, monazite and opaque minerals are variably present with epidote, actinolite and chlorite being present as secondary alteration minerals.

Origin

Late 18th century: from Greek aktis, aktin- 'ray' + lithos 'stone' (because of the ray-like crystals).

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更新时间:2025/3/24 0:41:09