Otwayite Mineral Data (original) (raw)
General Otwayite Information
Ni2(CO3)(OH)2•(H2O)
Molecular Weight = 229.42 gm
Nickel 51.16 % Ni 65.11 % NiO
Hydrogen 1.76 % H 15.71 % H2O
Carbon 5.24 % C 19.18 % CO2
Oxygen 41.84 % O
______ ______
100.00 % 100.00 % = TOTAL OXIDE
Ni2(CO3)(OH)2•(H2O)
Late-stage fracture filling.
Approved IMA 1977
Otway Ni prospect, 23 km north of the town of Nullagine, Pilbara region, Western Australia. Link to MinDat.org Location Data.
Named after Charles Albert Otway (1922-), miner and prospector of Cosnells, WA, Australia.
Otwayite Image
Otwayite Crystallography
a:b:c =0.3715:1:0.1175
a = 10.18, b = 27.4, c = 3.22, Z = 8; V = 898.16 Den(Calc)= 3.39
OrthorhombicSpace Group: Unk
By Intensity(I/Io): 6.84(1), 5.67(0.8), 2.737(0.6),
Physical Properties of Otwayite
Green, Bright green.
3.41
Aggregates - Made of numerous individual crystals or clusters.
Fibrous - Crystals made up of fibers.
4 - Fluorite
Silky
light green
Optical Properties of Otwayite
CI meas= 0.036 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.031 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2021,KPDmeas= 0.2009,KC= 0.2085
Ncalc = 1.71
Biaxial (?), a=1.65, g=1.72, bire=0.0700
pale green.
darker green.
darker green.
Calculated Properties of Otwayite
Bulk Density (Electron Density)=3.37 gm/cc
note: Specific Gravity of Otwayite =3.39 gm/cc.
Fermion Index = 0.0065609081
Boson Index = 0.9934390919
PEOtwayite = 20.10 barns/electron
U=PEOtwayite x rElectron Density= 67.73 barns/cc.
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Otwayite is Not Radioactive
Otwayite Classification
16b.03.02.01 (16b)Carbonates - Hydroxyl or Halogen
(16b.03)where Am Bn (XO3)p Zq � x(H2O), (m+n):p = 2:1
(16b.03.02)Dana Group
16b.03.02.01 Otwayite Ni2(CO3)(OH)2•(H2O) Unk Ortho
05.DA.15 05 - CARBONATES (NITRATES)
05.D - Carbonates with Additional Anions, with H2O
05.DA -With medium-sized cations
05.DA.15 Otwayite Ni2(CO3)(OH)2•(H2O) Unk Ortho
Other Otwayite Information
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Links to other databases for Otwayite :
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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Ask about Otwayite here :
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Print or Cut-and-Paste your Otwayite Specimen Label here :
Otwayite
Ni2(CO3)(OH)2•(H2O)
Dana No: 16b.03.02.01 Strunz No: 05.DA.15
Locality:
Notes: