| 释义 |
Definition of actinolite in English: actinolitenoun akˈtɪnəlʌɪt mass nounA 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). |