Actinolite

Properties

Formula ☐Ca2(Mg4.5-2.5FeII0.5-2.5)Si8O22(OH)2
Abbreviation Act
Classifications Actinolite root name group, Ferro-actinolite-Tremolite (series)
Luminescence emitters Cr, Mn
Spectra Reflectance (4)
IMA Status Approved/redefined (IMA 2012 s.p.)
Search other databases webmineral.com, mindat.org, rruf.info, fluomin.org, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Crystal symmetry Monoclinic, Point group 2/m, Space group C2/m (#12)
Tags Mineral, Silicate , Hydroxide

Composition

Element Wt%
H 0.24
Na 0.59
Mg 9.71
Ca 8.6
Ti 0.11
Mn 0.13
Fe 8.58
Al 1.39
Si 25.64
O 45.01
Total: 100

References

Reference Lines Spectra Images
Bakhtin 1985 1 0 0
Bakhtin & Moroshkin 1986 1 0 0
Pejcic et al. 2022 0 2 0
Pejcic et al. 2021 0 2 0