Chemical Formula: Ca2(Mg,Fe++)5Si8O22(OH)2
Help on Composition: Composition: Molecular Weight = 875.45 g
 
Hydrogen 0.23 % H 2.06 % H2O 0.00 %
Oxygen 43.86 % O 0.00 % 0.00 %
Magnesium 8.33 % Mg 13.81 % MgO 0.00 %
Silicon 25.66 % Si 54.91 % SiO2 0.00 %
Calcium 9.16 % Ca 12.81 % CaO 0.00 %
Iron 12.76 % Fe 16.41 % FeO 0.00 %


100.00 % 100.00 %
 
Help on Empirical Formula: Empirical Formula: Ca2Mg3Si8O22(OH)2Fe2+2
Help on Environment: Environment: Metamorphic rocks
Help on Locality: Locality: Common world wide.. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek, aktinos, meaning "ray" in allusion to actinolite's fibrous nature
Help on Synonym: Synonym: Byssolite
Hexagonite (Mn)
Mountain Leather
Nephrite Jade
Smaragdite - emerald green