Augite [ (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6 ]

Image of Augite

Material properties

Formula (Ca,Na)(Mg,Fe,Al,Ti)(Si,Al)2O6
Abbreviation Aug
Classification Clinopyroxene
Luminescence emitter Mn
Spectra Reflectance (1)
IMA Status Approved (IMA 1988 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/c (#15)
Tags Mineral, Silicate

Composition

Element Wt%
Na 0.97
Mg 9.26
Ca 15.26
Ti 2.03
Fe 4.73
Al 4.57
Si 22.58
O 40.62
Total: 100.02

References for Augite

Reference
Lines Spectra Images
Bakhtin 1985 2 0 0
Gaft et al. 1979; 1981 2 0 0
Pejcic et al. 2021 (EP2021-1148) 0 1 0
Torpy et al. 2020 0 2 0

Specimens of Augite

Name Owner Materials Phase purity Image Spectra Techniques
46E6454 Augite CSIRO Augite (98.0%), Diopside, Fluorite, Muscovite-1M 98.0 1 Reflectance
M1865 Augite CSIRO Augite (97.0%), Tremolite 97.0 0 —
196 Augite CSIRO Augite (94.0%), Muscovite-1M 94.0 0 —
MT8280 Augite CSIRO Augite (94.0%), Tremolite 94.0 0 —
M1328 Augite / Andradite CSIRO Andradite, Augite (89.1%) 89.1 0 —
M1385 Epidote CSIRO Albite, Augite (45.2%), Epidote, Fluorapatite 45.2 0 —
MES119 Rhönite CSIRO Anorthoclase, Armalcolite, Augite (38.8%), Hematite, Labradorite, Orthoclase 38.8 0 —
M2222-65916 Hedenbergite / Augite CSIRO Augite (36.0%), Hedenbergite, Na, Quartz 36.0 0 —
M0834 Ankerite CSIRO Albite, Ca, Ankerite, Augite (26.4%), Forsterite, Fe, Ilmenite, Montmorillonite, Sanidine 26.4 0 —
MT8397 Pigeonite CSIRO Augite (5.0%), Diopside, Fe2+, Labradorite, Lizardite, Nontronite-15.6A, Quartz, Rhodonite, Tremolite 5.0 0 —
MES014 Phlogopite NVCL, AuScope Limited Augite (2.1%), Muscovite-1M, Phlogopite, Phlogopite-2M1 2.1 1 Reflectance
Cr2O3 Hyper2-1 CSIRO Augite, Chromium(III) oxide — 1 SXES
Tista 2020 D4 Shaker CSIRO Albite, Allanite-(Ce), Amphibole, Andesine, Apatite, Augite, Biotite, Bytownite, Chlorite, Mg, Fe, Epidote, Garnet, Grossular, Ilmenite, Ilmenite, Mn, K feldspar, Kyanite, Monazite-(Ce), Muscovite, Oligoclase, Pyroxene, Quartz, Staurolite, Titanite, Titanohematite, Xenotime-(Y), Zircon, Zoisite — 46 CL, EDS