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
IMA Status Approved (IMA 1988 s.p.)
Crystal symmetry Monoclinic, Point group 2/m, Space group C2/c (#15)
Classification Clinopyroxene
Luminescence emitter Mn
Spectra Reflectance (1)
Search other databases webmineral.com, mindat.org, rruf.info, fluomin.org, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
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
CSIRO spectra 2015 (Noril'sk-Kharelakh) 0 2 0
Torpy et al. 2020 0 2 0

Specimens of Augite

Name Owner Materials Phase purity Image Spectra Techniques
46e6454 Diopside CSIRO Augite (98.0%), Diopside, Fluorite, Muscovite-1M 98.0 1 Reflectance
M1865 Augite CSIRO Augite (97.0%), Tremolite 97.0 0 —
196 Diopside 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 Augite CSIRO Augite (36.0%), Diopside (var. Fe2+), Hedenbergite (var. Na), Quartz 36.0 0 —
M0834 Ankerite CSIRO Albite (var. Ca), Ankerite, Augite (26.4%), Forsterite (var. Fe), Ilmenite, Montmorillonite, Sanidine 26.4 0 —
MT8397 Pigeonite CSIRO Augite (5.0%), Diopside (var. 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
KH-2 CSIRO Amphibole, Apatite, Augite, Biotite, Calcite, Chalcopyrite, Chlorapatite, Enstatite, Forsterite, Ilmenite, Magnetite, Pentlandite, Plagioclase, Pyrite, Pyroxene, Pyrrhotite — 26 CL, EDS
Tista 2020 D4 Shaker CSIRO Albite, Allanite-(Ce), Amphibole, Andesine, Apatite, Augite, Biotite, Bytownite, Chlorite (var. Mg, Fe), Epidote, Garnet, Grossular, Ilmenite, Ilmenite (var. Mn), K feldspar, Kyanite, Monazite-(Ce), Muscovite, Oligoclase, Pyroxene, Quartz, Staurolite, Titanite, Titanohematite, Xenotime-(Y), Zircon, Zoisite — 46 CL, EDS