Relationships between unit-cell parameters and composition for rock-forming minerals on Earth, Mars, and other extraterrestrial bodies

Shaunna M. Morrison; Robert T. Downs; David F. Blake; Anirudh Prabhu; Ahmed Eleish; David T. Vaniman; Douglas W. Ming; Elizabeth B. Rampe; Robert M. Hazen; Cherie N. Achilles; Allan H. Treiman; Albert S. Yen; Richard V. Morris; Thomas F. Bristow; Steve J. Chipera; Philippe C. Sarrazin; Kim V. Fendrich; John Michael Morookian; Jack D. Farmer; David J. DesMarais; Patricia I. Craig

doi:10.2138/am-2018-6123

Relationships between unit-cell parameters and composition for rock-forming minerals on Earth, Mars, and other extraterrestrial bodies

Shaunna M. Morrison, Robert T. Downs, David F. Blake, Anirudh Prabhu, Ahmed Eleish, David T. Vaniman, Douglas W. Ming, Elizabeth B. Rampe, Robert M. Hazen, Cherie N. Achilles, Allan H. Treiman, Albert S. Yen, Richard V. Morris, Thomas F. Bristow, Steve J. Chipera, Philippe C. Sarrazin, Kim V. Fendrich, John Michael Morookian, Jack D. Farmer, David J. DesMaraisPatricia I. Craig

Geosciences

Research output: Contribution to journal › Article › peer-review

44 Scopus citations

Abstract

Mathematical relationships between unit-cell parameters and chemical composition were developed for selected mineral phases observed with the CheMin X-ray diffractometer onboard the Curiosity rover in Gale crater. This study presents algorithms for estimating the chemical composition of phases based solely on X-ray diffraction data. The mineral systems include plagioclase, alkali feldspar, Mg-Fe-Ca C2/c clinopyroxene, Mg-Fe-Ca P2₁/c clinopyroxene, Mg-Fe-Ca orthopyroxene, Mg-Fe olivine, magnetite, and other selected spinel oxides, and alunite-jarosite. These methods assume compositions of Na-Ca for plagioclase, K-Na for alkali feldspar, Mg-Fe-Ca for pyroxene, and Mg-Fe for olivine; however, some other minor elements may occur and their impact on measured unit-cell parameters is discussed. These crystal-chemical algorithms can be applied to material of any origin, whether that origin is Earth, Mars, an extraterrestrial body, or a laboratory.

Original language	English (US)
Pages (from-to)	848-856
Number of pages	9
Journal	American Mineralogist
Volume	103
Issue number	6
DOIs	https://doi.org/10.2138/am-2018-6123
State	Published - Jun 26 2018

Keywords

CheMin
Gale crater
Mars
Mars Science Laboratory
Martian Rocks and Minerals
Meteorites
Orbiters
Perspectives from Rovers
X-ray diffraction
alunite
crystal chemistry
jarosite
magnetite
olivine
plagioclase
pyroxene
spinel
unit-cell parameters

ASJC Scopus subject areas

Geophysics
Geochemistry and Petrology

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10.2138/am-2018-6123

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Morrison, S. M., Downs, R. T., Blake, D. F., Prabhu, A., Eleish, A., Vaniman, D. T., Ming, D. W., Rampe, E. B., Hazen, R. M., Achilles, C. N., Treiman, A. H., Yen, A. S., Morris, R. V., Bristow, T. F., Chipera, S. J., Sarrazin, P. C., Fendrich, K. V., Morookian, J. M., Farmer, J. D., ... Craig, P. I. (2018). Relationships between unit-cell parameters and composition for rock-forming minerals on Earth, Mars, and other extraterrestrial bodies. American Mineralogist, 103(6), 848-856. https://doi.org/10.2138/am-2018-6123

Morrison, SM, Downs, RT, Blake, DF, Prabhu, A, Eleish, A, Vaniman, DT, Ming, DW, Rampe, EB, Hazen, RM, Achilles, CN, Treiman, AH, Yen, AS, Morris, RV, Bristow, TF, Chipera, SJ, Sarrazin, PC, Fendrich, KV, Morookian, JM, Farmer, JD, DesMarais, DJ & Craig, PI 2018, 'Relationships between unit-cell parameters and composition for rock-forming minerals on Earth, Mars, and other extraterrestrial bodies', American Mineralogist, vol. 103, no. 6, pp. 848-856. https://doi.org/10.2138/am-2018-6123

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title = "Relationships between unit-cell parameters and composition for rock-forming minerals on Earth, Mars, and other extraterrestrial bodies",

abstract = "Mathematical relationships between unit-cell parameters and chemical composition were developed for selected mineral phases observed with the CheMin X-ray diffractometer onboard the Curiosity rover in Gale crater. This study presents algorithms for estimating the chemical composition of phases based solely on X-ray diffraction data. The mineral systems include plagioclase, alkali feldspar, Mg-Fe-Ca C2/c clinopyroxene, Mg-Fe-Ca P21/c clinopyroxene, Mg-Fe-Ca orthopyroxene, Mg-Fe olivine, magnetite, and other selected spinel oxides, and alunite-jarosite. These methods assume compositions of Na-Ca for plagioclase, K-Na for alkali feldspar, Mg-Fe-Ca for pyroxene, and Mg-Fe for olivine; however, some other minor elements may occur and their impact on measured unit-cell parameters is discussed. These crystal-chemical algorithms can be applied to material of any origin, whether that origin is Earth, Mars, an extraterrestrial body, or a laboratory.",

keywords = "CheMin, Gale crater, Mars, Mars Science Laboratory, Martian Rocks and Minerals, Meteorites, Orbiters, Perspectives from Rovers, X-ray diffraction, alunite, crystal chemistry, jarosite, magnetite, olivine, plagioclase, pyroxene, spinel, unit-cell parameters",

author = "Morrison, {Shaunna M.} and Downs, {Robert T.} and Blake, {David F.} and Anirudh Prabhu and Ahmed Eleish and Vaniman, {David T.} and Ming, {Douglas W.} and Rampe, {Elizabeth B.} and Hazen, {Robert M.} and Achilles, {Cherie N.} and Treiman, {Allan H.} and Yen, {Albert S.} and Morris, {Richard V.} and Bristow, {Thomas F.} and Chipera, {Steve J.} and Sarrazin, {Philippe C.} and Fendrich, {Kim V.} and Morookian, {John Michael} and Farmer, {Jack D.} and DesMarais, {David J.} and Craig, {Patricia I.}",

note = "Publisher Copyright: {\textcopyright} 2018 Walter de Gruyter GmbH, Berlin/Boston 2018.",

year = "2018",

month = jun,

day = "26",

doi = "10.2138/am-2018-6123",

language = "English (US)",

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T1 - Relationships between unit-cell parameters and composition for rock-forming minerals on Earth, Mars, and other extraterrestrial bodies

AU - Morrison, Shaunna M.

AU - Downs, Robert T.

AU - Blake, David F.

AU - Prabhu, Anirudh

AU - Eleish, Ahmed

AU - Vaniman, David T.

AU - Ming, Douglas W.

AU - Rampe, Elizabeth B.

AU - Hazen, Robert M.

AU - Achilles, Cherie N.

AU - Treiman, Allan H.

AU - Yen, Albert S.

AU - Morris, Richard V.

AU - Bristow, Thomas F.

AU - Chipera, Steve J.

AU - Sarrazin, Philippe C.

AU - Fendrich, Kim V.

AU - Morookian, John Michael

AU - Farmer, Jack D.

AU - DesMarais, David J.

AU - Craig, Patricia I.

PY - 2018/6/26

Y1 - 2018/6/26

N2 - Mathematical relationships between unit-cell parameters and chemical composition were developed for selected mineral phases observed with the CheMin X-ray diffractometer onboard the Curiosity rover in Gale crater. This study presents algorithms for estimating the chemical composition of phases based solely on X-ray diffraction data. The mineral systems include plagioclase, alkali feldspar, Mg-Fe-Ca C2/c clinopyroxene, Mg-Fe-Ca P21/c clinopyroxene, Mg-Fe-Ca orthopyroxene, Mg-Fe olivine, magnetite, and other selected spinel oxides, and alunite-jarosite. These methods assume compositions of Na-Ca for plagioclase, K-Na for alkali feldspar, Mg-Fe-Ca for pyroxene, and Mg-Fe for olivine; however, some other minor elements may occur and their impact on measured unit-cell parameters is discussed. These crystal-chemical algorithms can be applied to material of any origin, whether that origin is Earth, Mars, an extraterrestrial body, or a laboratory.

AB - Mathematical relationships between unit-cell parameters and chemical composition were developed for selected mineral phases observed with the CheMin X-ray diffractometer onboard the Curiosity rover in Gale crater. This study presents algorithms for estimating the chemical composition of phases based solely on X-ray diffraction data. The mineral systems include plagioclase, alkali feldspar, Mg-Fe-Ca C2/c clinopyroxene, Mg-Fe-Ca P21/c clinopyroxene, Mg-Fe-Ca orthopyroxene, Mg-Fe olivine, magnetite, and other selected spinel oxides, and alunite-jarosite. These methods assume compositions of Na-Ca for plagioclase, K-Na for alkali feldspar, Mg-Fe-Ca for pyroxene, and Mg-Fe for olivine; however, some other minor elements may occur and their impact on measured unit-cell parameters is discussed. These crystal-chemical algorithms can be applied to material of any origin, whether that origin is Earth, Mars, an extraterrestrial body, or a laboratory.

KW - CheMin

KW - Gale crater

KW - Mars

KW - Mars Science Laboratory

KW - Martian Rocks and Minerals

KW - Meteorites

KW - Orbiters

KW - Perspectives from Rovers

KW - X-ray diffraction

KW - alunite

KW - crystal chemistry

KW - jarosite

KW - magnetite

KW - olivine

KW - plagioclase

KW - pyroxene

KW - spinel

KW - unit-cell parameters

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U2 - 10.2138/am-2018-6123

DO - 10.2138/am-2018-6123

M3 - Article

AN - SCOPUS:85040676671

SN - 0003-004X

VL - 103

SP - 848

EP - 856

JO - American Mineralogist

JF - American Mineralogist

IS - 6

ER -

Relationships between unit-cell parameters and composition for rock-forming minerals on Earth, Mars, and other extraterrestrial bodies

Abstract

Keywords

ASJC Scopus subject areas

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