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Name: Finnemanite RRUFF ID: R140329 Ideal Chemistry: Pb5(As3+O3)3Cl Locality: LÄngban, Varmland, Sweden Source: Benjamin N. Schumer [view label] Owner: RRUFF Description: Dark grey prismatic crystals, associated with hematite Status: The identification of this mineral has been confirmed by single-crystal X-ray diffraction. |
Mineral Group: [ Apatite (56) ] | ||
Quick search: [ All Finnemanite samples (2) ] |
RAMAN SPECTRUM | ||||||||||||
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BROAD SCAN WITH SPECTRAL ARTIFACTS | ||||||||||||
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POWDER DIFFRACTION | |||||||
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RRUFF ID: | R140329.9 | ||||||
Sample Description: | Single crystal, powder profile is calculated | ||||||
Cell Refinement Output: |
a: 10.310(2)Å b: 10.310(2)Å c: 7.071(1)Å alpha: 90° beta: 90° gamma: 120° Volume: 650.86(7)Å3 Crystal System: hexagonal |
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REFERENCES for Finnemanite | |
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American Mineralogist Crystal Structure Database Record: [view record] |
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Anthony J W, Bideaux R A, Bladh K W, and Nichols M C (1990) Handbook of Mineralogy, Mineral Data Publishing, Tucson Arizona, USA, by permission of the Mineralogical Society of America. [view file] |
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Aminoff G (1923) Finnemanit, ett nytt blyarsenit från Långban (Finnemanite, a new lead arsenite from Långban), Geologiska Föreningens i Stockholm Förhandlingar, 45, 160-163 [view file] |
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Wherry E T (1923) New minerals: new species, American Mineralogist, 8, 230-231 [view file] |
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Welin E (1968) Notes on the mineralogy of Sweden 6. X-ray powder data for minerals from Långban and the related mineral deposits of Central Sweden, Arkiv för Mineralogi och Geologi, 4, 499-541 |
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Effenberger H, Pertlik F (1978) Die kristallstruktur des finnemanits, Pb5Cl(AsO3)3, mit einem vergleich zum strukturtyp des chlorapatits, Ca5Cl(PO4)3, Tschermaks Mineralogische und Petrographische Mitteilungen, 26, 95-107 |
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Shannon R D, Shannon R C, Medenbach O, Fischer R X (2002) Refractive index and dispersion of fluorides and oxides, Journal of Physical and Chemical Reference Data, 31, 931-970 [view file] |
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Baikie T, Ferraris C, Klooster W T, Madhavi S, Pramana S S, Pring A, Schmidt G, White T J (2008) Crystal chemistry of mimetite, Pb10(AsO4)6Cl1.48O0.26, and finnemanite, Pb10(AsO3)6Cl2, Acta Crystallographica, B64, 34-41 [view file] |
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Baikie R, Schreyer M, Wei F, Herrin J S, Ferraris C, Brink F, Topolska J, Piltz R O, Price J, White T J (2014) The influence of stereochemically active lone-pair electrons on crystal symmetry and twist angles in lead apatite-2H type structures, Mineralogical Magazine, 78, 325-345 |
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