General Nakauriite Information Chemical Formula: |
(Mn,Ni,Cu)8(SO4)4(CO3)(OH)6•48(H2O) |
Composition: |
Molecular Weight = 1,870.41 gm |
|
Manganese 11.75 % Mn 15.17 % MnO |
|
Copper 3.40 % Cu 4.25 % CuO |
|
Nickel 9.41 % Ni 11.98 % NiO |
|
Hydrogen 5.50 % H 49.12 % H2O |
|
Carbon 0.64 % C 2.35 % CO2 |
|
Sulfur 6.86 % S 17.12 % SO3 |
|
Oxygen 62.44 % O |
|
______ ______ |
|
100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
Mn2+4Ni3Cu(SO4)4(CO3)(OH)6•48(H2O) |
Environment: |
Veins cutting massive serpentinite. |
IMA Status: |
Approved IMA 1976 |
Locality: |
Nakauri, Achi Prefecture, Japan. Link to MinDat.org Location Data. |
Name Origin: |
Named for the locality. |
Name Pronunciation: |
Nakauriite + Pronunciation |
| | Nakauriite Image
Images:
|
|
Nakauriite Crystallography Axial Ratios: |
a:b:c =1.2715:1:1.4141 |
Cell Dimensions: |
a = 14.585, b = 11.47, c = 16.22, Z = 2; V = 2,713.44 Den(Calc)= 2.29 |
Crystal System: |
OrthorhombicSpace Group: Unk |
X Ray Diffraction: |
By Intensity(I/Io): 7.314(1), 3.652(0.2), 2.367(0.16), |
| Physical Properties of Nakauriite Color: |
Sky blue, Light blue. |
Density: |
2.39 |
Habit: |
Acicular - Occurs as needle-like crystals. |
Habit: |
Fibrous - Crystals made up of fibers. |
Habit: |
Microscopic Crystals - Crystals visible only with microscopes. |
| Optical Properties of Nakauriite Gladstone-Dale: |
CI meas= 0.036 (Excellent) - where the CI = (1-KPDmeas/KC) |
CI calc= -0.006 (Superior) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2622,KPDmeas= 0.2512,KC= 0.2605 Ncalc = 1.6 - 1.62 Optical Data: |
Biaxial (-), a=1.585, b=1.604, g=1.612, bire=0.0270, 2V(Calc)=64, 2V(Meas)=65. |
Pleochroism (x): |
colorless. |
Pleochroism (y): |
light greenish blue. |
Pleochroism (z): |
pale sky blue. |
| Calculated Properties of Nakauriite Electron Density: |
Bulk Density (Electron Density)=2.37 gm/cc |
note: Specific Gravity of Nakauriite =2.29 gm/cc. Fermion Index: |
Fermion Index = 0.0019566479 |
Boson Index = 0.9980433521 Photoelectric: |
PENakauriite = 8.30 barns/electron |
U=PENakauriite x rElectron Density= 19.69 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Nakauriite is Not Radioactive | Nakauriite Classification Dana Class: |
32.04.01.01 (32)Compound Sulfates |
|
(32.04)(hydrous) with poly-anionic formula |
|
(32.04.01)Dana Group |
|
Strunz Class: |
07.DG.30 07 - SULFATES (SELENATES, TELLURATES) |
|
07.D - Sulfates (selenates, etc.) with additional anions, with H2O |
|
07.DG -With large and medium sized cations; with NO3, CO3, B(OH)4, SiO4 or IO3 |
|
| Other Nakauriite Information References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
See Also: |
Links to other databases for Nakauriite : |
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 Search for Nakauriite using: Visit our Advertisers for Nakauriite : A Bijoux Google Search for NakauriiteAdam's Minerals Google Search for Nakauriite Cape Minerals Google Search for Nakauriite Dakota Matrix Minerals Google Search for Nakauriite Excalibur Mineral Corp. Google Search for Nakauriite Exceptional Minerals Google Search for Nakauriite John Betts Fine Minerals Search for Nakauriite McDougall Minerals Google Search for Nakauriite Mineral News Website Link Rock and Mineral Shows Google Search for Nakauriite Weinrich Minerals, Inc. Google Search for Nakauriite Ask about Nakauriite here : Print or Cut-and-Paste your Nakauriite Specimen Label here :
| |
|
| |