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Oxammite Mineral Data

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General Oxammite Information

Help on Chemical  Formula: Chemical Formula: (NH4)2(C2O4)•(H2O)
Help on Composition: Composition: Molecular Weight = 142.11 gm
   Hydrogen   5.67 %  H      -   % Calc as (NH4)2O
   Hydrogen   1.42 %  H    12.68 % H2O
   Carbon    16.90 %  C    50.68 % C2O3
   Nitrogen  19.71 %  N    36.64 % (NH4)2O
   Oxygen    56.29 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: (NH4)2(C2O4)•(H2O)
Help on Environment: Environment: Derived from bird or bat guano; in subfossil bird eggs and on subfossil birds.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1870
Help on Locality: Locality: Guanape Islands, south of Trujillo, Peru. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named as an OXalate of AMMonia.
Help on Name Pronunciation: Name Pronunciation: Oxammite Say OXAMMITE
Help on Synonym: Synonym: ICSD 64936
  PDF 14-801

Oxammite Image

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Comments: Pale yellow translucent crystalline granular oxammite.
Location: Petrogale Cave, Western Australia, Australia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Oxammite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.7793:1:0.3686
Help on Cell Dimensions: Cell Dimensions: a = 8.035, b = 10.31, c = 3.801, Z = 2; V = 314.88 Den(Calc)= 1.50
Help on Crystal System: Crystal System: Orthorhombic - Disphenoidal H-M Symbol (2 2 2) Space Group: P 21212
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.666(1), 3.057(0.95), 6.32(0.95),

Physical Properties of Oxammite

Help on Cleavage: Cleavage: {001} Distinct
Help on Color: Color: Colorless, Yellowish white.
Help on Density: Density: 1.5
Help on Diaphaneity: Diaphaneity: Transparent
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Oxammite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -7.146 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -7.146 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.3511,KPDmeas= 0.3511,KC= 0.0431
Ncalc = 1.06
Help on Optical Data: Optical Data: Biaxial (-), a=1.438, b=1.547, g=1.595, bire=0.1570, 2V(Calc)=62, 2V(Meas)=62.

Calculated Properties of Oxammite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=1.60 gm/cc
note: Specific Gravity of Oxammite =1.50 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.19
Boson Index = 0.81
Help on Photoelectric: Photoelectric: PEOxammite = 0.31 barns/electron
U=PEOxammite x rElectron Density= 0.50 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Oxammite is Not Radioactive

Oxammite Classification

Help on  Dana Class: Dana Class: (50)Salts of Organic Acids
  (50.01.05)Dana Group Oxammite (NH4)2(C2O4)•(H2O) P 21212 2 2 2
Help on  Strunz Class: Strunz Class: 10.AB.55 10 - ORGANIC COMPOUNDS
  10.A - Salts of Organic Acids
  10.AB -Oxalates
10.AB.55 Oxammite (NH4)2(C2O4)•(H2O) P 21212 2 2 2

Other Oxammite Information

Help on References: References: NAME( AntBidBlaNic2) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Oxammite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Dana No: Strunz No: 10.AB.55





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