Definition of actinolite in English:

actinolite

noun akˈtɪnəlʌɪt

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.
Example sentencesExamples
- Calcic amphiboles, including hornblende and actinolite are abundant, and probably are alteration products, which also include albite, orthoclase and rare pyrite.
- The presence of several amphibole minerals, such as tremolite, actinolite, anthophyllite, was confirmed.
- They have a mineralogical association of quartz, diopside, actinolite, plagioclase and K-feldspar.
- Kyanite, microcline, zircon, monazite and opaque minerals are variably present with epidote, actinolite and chlorite being present as secondary alteration minerals.
- Amosite, fibrous anthophyllite, fibrous tremolite, fibrous actinolite, and crocidolite are amphiboles, double-chain silicates, which observed microscopically look like sharp needles.

Origin

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

单词	actinolite
释义	Definition of actinolite in English: actinolite noun akˈtɪnəlʌɪt 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. Example sentencesExamples Calcic amphiboles, including hornblende and actinolite are abundant, and probably are alteration products, which also include albite, orthoclase and rare pyrite. The presence of several amphibole minerals, such as tremolite, actinolite, anthophyllite, was confirmed. They have a mineralogical association of quartz, diopside, actinolite, plagioclase and K-feldspar. Kyanite, microcline, zircon, monazite and opaque minerals are variably present with epidote, actinolite and chlorite being present as secondary alteration minerals. Amosite, fibrous anthophyllite, fibrous tremolite, fibrous actinolite, and crocidolite are amphiboles, double-chain silicates, which observed microscopically look like sharp needles. Origin Late 18th century: from Greek aktis, aktin- 'ray' + lithos 'stone' (because of the ray-like crystals).
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