[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 Giniite InformationFe++Fe+++4(PO4)4(OH)2•2(H2O) |
Molecular Weight = 729.17 gm |
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Iron 38.30 % Fe 9.85 % FeO / 43.80 % Fe2O3 |
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Phosphorus 16.99 % P 38.93 % P2O5 |
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Hydrogen 0.83 % H 7.41 % H2O |
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Oxygen 43.88 % O |
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100.00 % 100.00 % = TOTAL OXIDE |
Fe2+Fe3+4(PO4)4(OH)2•2(H2O) |
In a pegmatite. |
Approved IMA 1980 |
Sandamab, near Usakos, Namibia. Link to MinDat.org Location Data. |
Named by Paul Keller for his wife, Gini Keller. |
Giniite |
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Giniite Crystallographya:b:c =2.7664:1:2.0095 |
a = 14.253, b = 5.152, c = 10.353, Z = 2; beta = 111.3° V = 708.31 Den(Calc)= 3.42 |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 2/a |
By Intensity(I/Io): 3.36(1), 2.04(0.7), 3.2(0.7), |
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Mouse
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| Physical Properties of GiniiteNone |
Blackish brown, Black, Blackish green. |
3.41 |
Translucent |
Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). |
Crystalline - Fine - Occurs as well-formed fine sized crystals. |
3-4 - Calcite-Fluorite |
Vitreous - Greasy |
olive green |
| Optical Properties of GiniiteCI meas= 0.076 (Fair) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.079 (Poor) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2329,KPDmeas= 0.2336,KC= 0.2529 Ncalc = 1.86 - 1.87 Biaxial (-), a=1.775, b=1.803, g=1.812, bire=0.0370, 2V(Calc)=58, 2V(Meas)=55. |
light brown. |
dark brown. |
dark blue green. |
| Calculated Properties of GiniiteBulk Density (Electron Density)=3.33 gm/cc |
note: Specific Gravity of Giniite =3.41 gm/cc. Fermion Index = 0.008330457 |
Boson Index = 0.991669543 PEGiniite = 12.26 barns/electron |
U=PEGiniite x rElectron Density= 40.81 barns/cc. GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Giniite is Not Radioactive | Giniite Classification42.11.07.01 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen |
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(42.11)where (AB)4 (XO4)3 Zq · x(H2O) |
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(42.11.07)Dana Group |
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08.DB.50 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.D - Phosphates, etc |
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08.DB -With only medium-sized cations, (OH, etc.):RO4 < 1:1 |
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| Other Giniite InformationNAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8) |
Links to other databases for Giniite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - Google Images 6 - Google Scholar 7 - Handbook of Mineralogy (MinSocAm) 8 - Handbook of Mineralogy (UofA) 9 - MinDAT 10 - MinMax(Deutsch) 11 - MinMax(English) 12 - Mineralienatlas (Deutsch) 13 - QUT Mineral Atlas 14 - Ruff.Info Search for Giniite using: Visit our Advertisers for Giniite : AA Mineral SpecimensB & L Fine Minerals Crystalarium.com Dan Weinrich Fine Minerals Dan Weinrich Auctions Dakota Matrix Desert Winds Gems and Minerals Excalibur Minerals Exceptional Minerals Fabre Minerals Heliodor John Betts Fine Minerals Mason's Minerals Mineral News Mineral of the Month Club Wrights Rock Shop Translate Giniite Mineral Data : Ask about Giniite here : Print or Cut-and-Paste your Giniite Specimen Label here :
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