Ferro-actinolite Ca2(Fe2+,Mg)5Si8O22(OH)2 - Handbook of .Ferro-actinolite. Ca2(Fe2+,Mg)5Si8O22(OH)2 c. ○2001 Mineral Data Publishing, version 1.2. Crystal Data: Monoclinic. Point Group: 2/m. [As bladed or.stone ferro-actinolite crusher loughside,stone ferro-actinolite crusher loughside,Ferro-actinolite: Mineral information, data and localities. - MindatNote: Tremolite is defined as having an Mg/(Mg+Fe2+) ratio ≥ 0.9; Actinolite has a ratio of 0.5–0.9 and Ferro-Actinolite has a ratio of less than 0.5.Actinolite - WikipediaPleochroism, moderate, yellow to dark green (in stones that are transparent). 2V angle, 78–82° (calc), 84–73° (meas). Dispersion, r < v. Ultraviolet fluorescence, inert. Absorption spectra, faint line at 503 nm. References. Actinolite is an amphibole silicate mineral with the chemical formula . and iron-rich ferro-actinolite, ☐Ca2(Mg2.5-0.0Fe2+2.5-5.0)Si8O22(OH)2.
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