Grossular : CSIRO Spectroscopy Database

Grossular [ Ca₃Al₂(SiO₄)₃ ]

Images of Grossular

CL spectrum of Grossular [Ca3Al2(SiO4)3] from Bangladesh, measured July 2023, in map 'Guide 2-1 0009-3 Non-mag'

OpticalFit spectrum plot by A. Torpy. (C) 2023 CSIRO Mineral Resources

Specimen of grossular, from Khalola hill near Sassi, Gilgit- Baltistan, Pakistan. Specimen M 38031, Museums Victoria.

Photo by John Bosworth, Copyright Museums Victoria / CC BY (Licensed as Attribution 4.0 International)

CL spectrum of Grossular from the Tista River, Bangladesh

Material properties

Formulas	Ca₃Al₂(SiO₄)₃, Ca₃(Al,Fe^III)₂(SiO₄)₃
Abbreviation	Grs, Grs
Variants	Fe, Fe3+
Classifications	Minerals containing SiO4, Garnet, Andradite-Grossular (series)
Member	Hydrogrossular
Luminescence emitters	Mn, Unspecified
Spectra	Luminescence (2)
IMA Status	Approved (IMA 1962 s.p.)
Search other databases	webmineral.com, mindat.org, rruf.info, mineralienatlas.de, Handbook of Mineralogy, American Mineralogist Crystal Structure Database
Crystal symmetry	Cubic, Point group m3m, Space group Ia3d (#230)
Tags	Mineral, Aluminosilicate, Aluminosilicate

Composition

Element	Atoms
O	12
Al	2
Si	3
Ca	3
Total:	20

References for Grossular

CSIRO R-2023-03 Bangladesh

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Torpy et al. 2020, luminescence

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Torpy et al. 2020, luminescence, other

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Specimens of Grossular

Name	Owner	Materials	Image	Spectra	Techniques
M2086 Wollastonite	CSIRO	Calcite, Grossular, Wollastonite, Wollastonite-1A	M2086 Wollastonite Image of Wollastonite, Calcite, Grossular and Wollastonite-1A in specimen 'M2086 Wollastonite' [CSIRO], from Willsboro, Essex Co., NY, USA. (C) 2026 CSIRO Mineral Resources. All rights reserved.	1	Reflectance
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	Tista 2020 D4 Shaker Clustered phase map of river sands (D4 shaker), from the Tista River, Bangladesh. From Torpy et al. 2020 (C) 2020 CSIRO Mineral Resources	46	CL, EDS