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Davisite R130013

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Record 18 of 81

	Name: Davisite RRUFF ID: R130013 Ideal Chemistry: CaScAlSiO₆ Locality: Allende meteorite, Pueblito de Allende, Chihuahua, Mexico Source: Chi Ma Owner: Chi Ma Description: Micro-sized crystals along with perovskite and spinel. Transparent with a light-gray color. Data from Ma & Rossman (2009) Status: The identification of this mineral is confirmed by electron back-scatter diffraction and chemical analysis
Mineral Group: [ pyroxene (81) ]

CHEMISTRY

RRUFF ID:	R130013.2
Sample Description:	Polished microprobe sample
Measured Chemistry:	Ca_0.99(Sc_0.50Ti³⁺_0.16Mg_0.16Ti⁴⁺_0.10 Zr_0.04V³⁺_0.02Fe²⁺_0.01Y_0.01)_Σ=1.00(Si_1.03Al_0.97)_Σ=2.00O₆

RAMAN SPECTRUM

RRUFF ID:

Sample Description:

Unoriented sample

DOWNLOADS:

	Raman Data (RAW)
	RRUFF File

BROAD SCAN WITH SPECTRAL ARTIFACTS

RRUFF ID:

R130013

Wavelength:

Sample Description:

Unoriented Raman

Instrument settings:

Renishaw M1000 514nm @ 100% of 50mW

DOWNLOADS:

	Raman Data (RAW)
	RRUFF File

REFERENCES for Davisite
American Mineralogist Crystal Structure Database Record: [view record]
Ohashi H, Ii N (1978) Structure of calcium scandium aluminum silicate (CaScAlSiO₆)-pyroxene, Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 73, 267-273 [view file]
Williams P A, Hatert F, Pasero M (2008) New minerals approved in 2008, in International Mineralogical Association 1-13 [view file]
Ma C, Rossman G R (2009) Davisite, CaScAlSiO₆, a new pyroxene from the Allende meteorite, American Mineralogist, 94, 845-848 [view file]