Donpeacorite, (Mn,Mg)MgSi2O6, a new orthopyroxene and its proposed phase relations in the system MnSiO3-MgSiO3- FeSiO3.

E. U. Petersen; L. M. Anovitz; E. J. Essene

Donpeacorite, (Mn,Mg)MgSi₂O₆, a new orthopyroxene and its proposed phase relations in the system MnSiO₃-MgSiO₃- FeSiO₃.

E. U. Petersen
, L. M. Anovitz
, E. J. Essene

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

20 Scopus citations

Abstract

Donpeacorite, a Mn-rich orthopyroxene Mg_1.41Mn_0.56Ca_0.03Si₂O₆, occurs with tirodite, tourmaline, ferrian braunite, manganoan dolomite, and hedyphane in a manganiferous pod in the marble units near Balmat, New York. This new mineral has space group symmetry Pbca, and unit cell parameters a 18.384(11), b 8.878(7), c 5.226(3), Z=8, D(meas.) 3.36(1). Biaxially negative, it has refractive indices alpha 1.677(2), beta 1.684(2), gamma 1.692(2), 2V_alpha 88o. It is yellow- orange, with vitreous lustre, perfect (110) cleavages and H. approx 5-6, this new orthopyroxene was named for Donald R. Peacor. An indexed powder XRD pattern, a single-crystal XRD structure refinement, and phase diagram analyses are also reported.-J.A.Z.

Original language	English
Pages (from-to)	472-480
Number of pages	9
Journal	American Mineralogist
Volume	69
Issue number	5-6
State	Published - 1984
Externally published	Yes

Cite this

@article{86580a86df9c42c19e3a366fa971055e,

title = "Donpeacorite, (Mn,Mg)MgSi2O6, a new orthopyroxene and its proposed phase relations in the system MnSiO3-MgSiO3- FeSiO3.",

abstract = "Donpeacorite, a Mn-rich orthopyroxene Mg1.41Mn0.56Ca0.03Si2O6, occurs with tirodite, tourmaline, ferrian braunite, manganoan dolomite, and hedyphane in a manganiferous pod in the marble units near Balmat, New York. This new mineral has space group symmetry Pbca, and unit cell parameters a 18.384(11), b 8.878(7), c 5.226(3), Z=8, D(meas.) 3.36(1). Biaxially negative, it has refractive indices alpha 1.677(2), beta 1.684(2), gamma 1.692(2), 2Valpha 88o. It is yellow- orange, with vitreous lustre, perfect (110) cleavages and H. approx 5-6, this new orthopyroxene was named for Donald R. Peacor. An indexed powder XRD pattern, a single-crystal XRD structure refinement, and phase diagram analyses are also reported.-J.A.Z.",

author = "Petersen, \{E. U.\} and Anovitz, \{L. M.\} and Essene, \{E. J.\}",

year = "1984",

language = "English",

volume = "69",

pages = "472--480",

journal = "American Mineralogist",

issn = "0003-004X",

publisher = "Mineralogical Society of America",

number = "5-6",

}

TY - JOUR

T1 - Donpeacorite, (Mn,Mg)MgSi2O6, a new orthopyroxene and its proposed phase relations in the system MnSiO3-MgSiO3- FeSiO3.

AU - Petersen, E. U.

AU - Anovitz, L. M.

AU - Essene, E. J.

PY - 1984

Y1 - 1984

N2 - Donpeacorite, a Mn-rich orthopyroxene Mg1.41Mn0.56Ca0.03Si2O6, occurs with tirodite, tourmaline, ferrian braunite, manganoan dolomite, and hedyphane in a manganiferous pod in the marble units near Balmat, New York. This new mineral has space group symmetry Pbca, and unit cell parameters a 18.384(11), b 8.878(7), c 5.226(3), Z=8, D(meas.) 3.36(1). Biaxially negative, it has refractive indices alpha 1.677(2), beta 1.684(2), gamma 1.692(2), 2Valpha 88o. It is yellow- orange, with vitreous lustre, perfect (110) cleavages and H. approx 5-6, this new orthopyroxene was named for Donald R. Peacor. An indexed powder XRD pattern, a single-crystal XRD structure refinement, and phase diagram analyses are also reported.-J.A.Z.

AB - Donpeacorite, a Mn-rich orthopyroxene Mg1.41Mn0.56Ca0.03Si2O6, occurs with tirodite, tourmaline, ferrian braunite, manganoan dolomite, and hedyphane in a manganiferous pod in the marble units near Balmat, New York. This new mineral has space group symmetry Pbca, and unit cell parameters a 18.384(11), b 8.878(7), c 5.226(3), Z=8, D(meas.) 3.36(1). Biaxially negative, it has refractive indices alpha 1.677(2), beta 1.684(2), gamma 1.692(2), 2Valpha 88o. It is yellow- orange, with vitreous lustre, perfect (110) cleavages and H. approx 5-6, this new orthopyroxene was named for Donald R. Peacor. An indexed powder XRD pattern, a single-crystal XRD structure refinement, and phase diagram analyses are also reported.-J.A.Z.

UR - https://www.scopus.com/pages/publications/0021360886

M3 - Article

AN - SCOPUS:0021360886

SN - 0003-004X

VL - 69

SP - 472

EP - 480

JO - American Mineralogist

JF - American Mineralogist

IS - 5-6

ER -

Donpeacorite, (Mn,Mg)MgSi₂O₆, a new orthopyroxene and its proposed phase relations in the system MnSiO₃-MgSiO₃- FeSiO₃.

Abstract

Other files and links

Fingerprint

Cite this