Yeatmanite: new data

P. J. Dunn; P. B. Leavens

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Other| February 01, 1980

Yeatmanite: new data

P. J. Dunn;

P. J. Dunn

Smithson. Inst., Dep. Miner. Sci., Washington, D.C., United States

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P. B. Leavens

Univ. Del., United States

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Author and Article Information

P. J. Dunn

Smithson. Inst., Dep. Miner. Sci., Washington, D.C., United States

P. B. Leavens

Univ. Del., United States

Publisher: Mineralogical Society of America

First Online: 02 Mar 2017

Online ISSN: 1945-3027

Print ISSN: 0003-004X

American Mineralogist (1980) 65 (1-2): 196–199.

Abstract

Type specimens of yeatmanite are re-examined and X-ray powder-diffraction data are presented for yeatmanite. Least-squares refinement of the powder data yield unit-cell parameters of a = 5.604(2), b = 11.602(7), c = 9.058(4)A, α = 92°10(3)′, β = 100°54(2)′, γ = 77°18(5)′. Microprobe analyses confirm the chemical formula of yeatmanite as [Mn₅Sb₂] [Mn₂Zn₈Si₄]O₂₈, instead of the originally proposed formula of (Mn,Zn)₁₆Si₄Sb₂O₂₉. Yeatmanite remains a species unique to Franklin, New Jersey.