Wagnerite

(Mg,Fe2+)2PO4FIMA symbolWag[1]Strunz classification8.BB.15Dana classification41.6.2.1Crystal systemMonoclinicCrystal classPrismatic (2/m)Space groupP21/a’’IdentificationColorYellow, grayish, red, reddish brown, brown, greenCrystal habitElongate and striated prisms, tabular, massiveCleavage{100} imperfect, {120} imperfectFractureSub-conchoidal, splinteryTenacityBrittleMohs scale hardness5–5.5LusterVitreous, resinousDiaphaneityTranslucent, nearly opaqueSpecific gravity3.15Density3.15 (measured), 3.15 (calculated)Optical propertiesBiaxial (+), colorless (transmitted light)PleochroismNone2V angle25°–35° (measured)SolubilitySoluble in acidsReferences[2][3][4]

Wagnerite is a mineral, a combined phosphate and fluoride of iron and magnesium, with the formula (Mg,Fe2+)2PO4F.[2][3] It occurs in pegmatite associated with other phosphate minerals.[4] It is named after Franz Michael von Wagner (1768–1851), a German mining official in Munich.[2]

References

  1. ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
  2. ^ a b c Mindat – Wagnerite
  3. ^ a b Webmineral – Wagnerite
  4. ^ a b Handbook of Mineralogy – Wagnerite

Bibliography

  • Palache, P.; Berman H.; Frondel, C. (1960). "Dana's System of Mineralogy, Volume II: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. (Seventh Edition)" John Wiley and Sons, Inc., New York, pp. 845–847.
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