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Related to actinolite: epidote, tremolite


A greenish amphibole mineral, Ca2(Mg,Fe)5Si8O22(OH)2, that occurs in several forms, including a fibrous form that is a variety of asbestos.


(Minerals) a green mineral of the amphibole group consisting of calcium magnesium iron silicate. Formula: Ca2(Mg,Fe)5Si8O22(OH)2
[C19: from actino- (from the radiating crystals in some forms) + -lite]


(ækˈtɪn lˌaɪt)

a variety of amphibole, occurring in greenish bladed crystals or in masses.
ac•tin`o•lit′ic (-ˈɪt ɪk) adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.actinolite - a green mineral of the amphibole groupactinolite - a green mineral of the amphibole group; calcium magnesium iron silicate
amphibole - a mineral or mineral variety belonging to the amphibole group
amphibole group - a group of minerals with similar crystal structures containing a silicate chain and combinations of chiefly sodium and calcium and magnesium and iron and aluminum
References in periodicals archive ?
Asbestos (chrysotile, amosite, crocidolite, tremolite, actinolite and anthophyllite).
The conditions of metamorphism of the metabasites of the Arquia Complex in all lithotypes studied along the Central Cordillera reached the amphibolite facies for the garnet-amphibolite without garnet and greenschist facies for the epidote actinolite schists.
1), the dykes contain penetrative schistosity of aligned biotite and actinolite that is parallel to the trend of the dykes and cross-cuts an earlier phyllitic cleavage in the Silurian volcanic and sedimentary host rocks of the Waweig Formation; locally the dykes are highly boudinaged.
1997), the overall pale colour, relatively low SG and weak pleochroism corresponded to a member with a low iron content, and therefore suggested tremolite, rather than actinolite, as the identity of this crystal.
crocidolite, anthophyllite, tremolite, actinolite, amosite, chrysotile).
Subsolidus alteration is manifested by the formation of a secondary paragenesis mainly consisting of chlorite, sericite and a secondary green--to colourless amphibole (Mg-hornblende to actinolite and cummingtonite) at the expense of the primary minerals.
The meta-volcanics of Burji- La Formation have greater amount of tremolite/ actinolite with lesser amount of hornblende and plagioclase phenocrysts.
The presence of Al in marbles promoted the formation of several minerals, such as clinochlore, epidote-group minerals, garnet, muscovite, actinolite and tremolite distributed in different reaction zones of marbles.
In the chlorite rock it is observed to a great extent, because actinolite is not formed in this stone and we can conclude that the rock still is not reached at the green sheet mass (figure 13).
Non-metallic minerals are apatite, quartz, hornblende, actinolite, epidote, chlorite, Saussure, pomegranate.
Volcanic conduits in studied area penetrate complex of predominantly metabasic rocks of the Marianske Lazne Complex (MLC: amphibolites, metagabbros, eclogites, serpentinites, actinolite schists--Stedra et al.