---- R230013 - RRUFF Database: Raman, X-ray, Infrared, and Chemistry

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Ahrensite R230013

Name: Ahrensite
RRUFF ID: R230013
Ideal Chemistry: SiFe₂O₄
Locality: Tissint meteorite, likely from Mars
Source: Chi Ma
Owner: Chi Ma
Description: Bluish-green polycrystalline, associated with shocked olivine, pyroxene, bridgemanite and wustite in a melt pocket. Type specimen from Ma et al (2016)
Status: The identification of this mineral has been confirmed by X-ray diffraction and chemical analysis

Mineral Group: [ Spinel (66) ]

CHEMISTRY

RRUFF ID:	R230013.2
Sample Description:	Microprobe Fragment
Measured Chemistry:	(Fe_1.12Mg_0.86Si_0.02)(Si_0.98Fe_0.02)O₄

RAMAN SPECTRUM

RRUFF ID:

Sample Description:

Unoriented Raman on the polished section

DOWNLOADS:

	Raman Data (Processed)
	RRUFF File
	Raman Data (RAW)
	RRUFF File

POWDER DIFFRACTION

RRUFF ID:

R230013

Sample Description:

Fragment recorded at synchrotron, profile is calculated

Cell Refinement Output:

a: 8.1629(2)Å b: 8.1629(2)Å c: 8.1629(2)Å
alpha: 90° beta: 90° gamma: 90° Volume: 543.92(7)Å³ Crystal System: cubic

File Type Information

Output file from the Bruker D8 Advance instrument. Includes device headers and XY data.

DOWNLOADS:

	X-ray Data (XY - RAW)
	RRUFF File

REFERENCES for Ahrensite
American Mineralogist Crystal Structure Database Record: [view record]
Williams P A, Hatert F, Pasero M, Mills S J (2013) IMA Commission on new minerals, nomenclature and classification (CNMNC) Newsletter 16. New minerals and nomenclature modifications approved in 2013, Mineralogical Magazine, 77, 2695-2709 [view file]
Yamanaka T, Kyono A, Nakamoto Y, Kharlamova S, Struzhkin V V, Gramsch S A, Mao H K, Hemley R J (2015) New structure of high-pressure body-centered orthorhombic Fe₂SiO₄, American Mineralogist, 100, 1736-1743
Glassley W E, Korstgård J A, Sørensen K (2016) Further observations related to a possible occurrence of terrestrial ahrensite, American Mineralogist, 101, 2347-2350
Ma C, Tschauner O, Beckett J R, Liu Y, Rossman G R, Sinogeikin S V, Smith J S, Taylor L A (2016) Ahrensite, γ-Fe₂SiO₄, a new shock-metamorphic mineral from the Tissint meteorite: Implications for the Tissint shock event on Mars, Geochimica et Cosmochimica Acta, 184, 240-256 [view file]
Bosi F, Biagioni C, Pasero M (2019) Nomenclature and classification of the spinel supergroup, European Journal of Mineralogy, 31, 183-192 [view file]
Tschauner O (2019) High-pressure minerals, American Mineralogist, 104, 1701-1731
Gu L, Hu S, Anand M, Tang X, Ji J, Zhang B, Wang N, lin Y (2022) Occurrence of tuite and ahrensite in Zagami and their significance for shock-histories recorded in martian meteorites, American Mineralogist, 107, 1018

REFERENCES for Ahrensite

American Mineralogist Crystal Structure Database Record: [view record]

Williams P A, Hatert F, Pasero M, Mills S J (2013) IMA Commission on new minerals, nomenclature and classification (CNMNC) Newsletter 16. New minerals and nomenclature modifications approved in 2013, Mineralogical Magazine, 77, 2695-2709 [view file]

Yamanaka T, Kyono A, Nakamoto Y, Kharlamova S, Struzhkin V V, Gramsch S A, Mao H K, Hemley R J (2015) New structure of high-pressure body-centered orthorhombic Fe₂SiO₄, American Mineralogist, 100, 1736-1743

Glassley W E, Korstgård J A, Sørensen K (2016) Further observations related to a possible occurrence of terrestrial ahrensite, American Mineralogist, 101, 2347-2350

Ma C, Tschauner O, Beckett J R, Liu Y, Rossman G R, Sinogeikin S V, Smith J S, Taylor L A (2016) Ahrensite, γ-Fe₂SiO₄, a new shock-metamorphic mineral from the Tissint meteorite: Implications for the Tissint shock event on Mars, Geochimica et Cosmochimica Acta, 184, 240-256 [view file]

Bosi F, Biagioni C, Pasero M (2019) Nomenclature and classification of the spinel supergroup, European Journal of Mineralogy, 31, 183-192 [view file]

Tschauner O (2019) High-pressure minerals, American Mineralogist, 104, 1701-1731

Gu L, Hu S, Anand M, Tang X, Ji J, Zhang B, Wang N, lin Y (2022) Occurrence of tuite and ahrensite in Zagami and their significance for shock-histories recorded in martian meteorites, American Mineralogist, 107, 1018