[New Updates] [Gallery 1] [Gallery 2] [Gallery 3] [Rock Shop Gallery] Serving the mineral collector and educator community since 1970 Over 900,000 mineral specimens in stock New minerals acquired weekly - Wright's Rock Shop General Manganlotharmeyerite InformationCa(Mn+++,Mg,)2(AsO4)2(OH,H2O)2 |
Molecular Weight = 414.80 gm |
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Calcium 8.70 % Ca 12.17 % CaO |
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Magnesium 2.34 % Mg 3.89 % MgO |
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Manganese 13.24 % Mn 19.03 % Mn2O3 |
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Arsenic 36.12 % As 55.41 % As2O5 |
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Hydrogen 1.02 % H 9.12 % H2O |
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Oxygen 38.57 % O |
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100.00 % 99.61 % = TOTAL OXIDE |
Ca0.92(Mn3+0.5)2(Mg0.2)2(As)O10H4.2 |
In carbonate-hosted manganese ore. |
Approved IMA 2002 (Dana # Added) |
Starlera Fe-Mn deposit, Val Ferrera, Eastern Alps, Switzerland. Link to MinDat.org Location Data. |
Named as the Mn-dominant lotharmeyerite. |
IMA2001-026 |
| | Manganlotharmeyerite Image
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Manganlotharmeyerite Crystallographya:b:c =1.4511:1:1.1857 |
a = 9.043, b = 6.2314, c = 7.3889, Z = 2; beta = 116.392° V = 372.97 Den(Calc)= 3.69 |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m |
By Intensity(I/Io): 2.555(1)(221,312), 3.182(1)(112), 2.718(0.8)(311),4.93(0.8)(110), 2.134(0.7)(202,221), 2.822(0.7)(021), 2.927(0.7)(201),
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| Physical Properties of Manganlotharmeyerite{001} Distinct |
Brownish red, Dark reddish orange. |
3.77 |
Transparent to Translucent |
Brittle - Irregular - Very brittle fracture producing irregular fragments |
Aggregates - Made of numerous individual crystals or clusters. |
Platy - Sheet forms (e.g. micas). |
3 - Calcite |
Adamantine |
light brown |
| Optical Properties of ManganlotharmeyeriteCI meas= -0.026 (Excellent) - where the CI = (1-KPDmeas/KC) |
CI calc= -0.048 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2216,KPDmeas= 0.2169,KC= 0.2114 Ncalc = 1.78 - 1.8 Biaxial (+), a=1.785, b=1.814, g=1.854, bire=0.0690, 2V(Calc)=84, 2V(Meas)=~85. Dispersion r < v weak. |
| Calculated Properties of ManganlotharmeyeriteBulk Density (Electron Density)=3.60 gm/cc |
note: Specific Gravity of Manganlotharmeyerite =3.77 gm/cc. Fermion Index = 0.0026478418 |
Boson Index = 0.9973521582 PEManganlotharmeyerite = 29.13 barns/electron |
U=PEManganlotharmeyerite x rElectron Density= 104.84 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Manganlotharmeyerite is Not Radioactive | Manganlotharmeyerite Classification40.02.03.05 (40)Hydrated Phosphates, etc |
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(40.02)where A++ (B++)2 (XO4) · x(H2O) |
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(40.02.03)Roselite Subgroup (Monoclinic: P21/c) |
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08.CG.15 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.C - Phosphates without Additional Anions, with H2O |
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08.CG -With large and medium-sized cations, RO4:H2O = 1:1 |
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| Other Manganlotharmeyerite InformationNAME( CanMin, v 41, p 818) PHYS. PROP.(CanMin, v 41, p 818) OPTIC PROP.(CanMin, v 41, p 818) |
Links to other databases for Manganlotharmeyerite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - Google Images 4 - Google Scholar 5 - Handbook of Mineralogy (MinSocAm) 6 - Handbook of Mineralogy (UofA) 7 - MinDAT 8 - MinMax(Deutsch) 9 - MinMax(English) 10 - Mineralienatlas (Deutsch) 11 - QUT Mineral Atlas 12 - Ruff.Info Search for Manganlotharmeyerite using: Visit our Advertisers for Manganlotharmeyerite : AA Mineral SpecimensB & L Fine Minerals Crystalarium.com Dan Weinrich Fine Minerals Dan Weinrich Auctions Dakota Matrix Diamond Dan Publications e-Rocks Auctions Excalibur Minerals Exceptional Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club Wrights Rock Shop Translate Manganlotharmeyerite Mineral Data : Ask about Manganlotharmeyerite here : Print or Cut-and-Paste your Manganlotharmeyerite Specimen Label here :
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