General Cianciulliite Information Chemical Formula: |
Mn++++(Mg,Mn++)2Zn2(OH)10•2-4(H2O) |
Composition: |
Molecular Weight = 473.76 gm |
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Magnesium 7.70 % Mg 12.76 % MgO |
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Manganese 17.39 % Mn 7.49 % MnO / 18.35 % MnO2 |
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Zinc 27.60 % Zn 34.36 % ZnO |
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Hydrogen 3.40 % H 30.42 % H2O |
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Oxygen 43.90 % O |
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______ ______ |
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100.00 % 103.38 % = TOTAL OXIDE |
Empirical Formula: |
Mn4+Mg1.5Mn2+0.5Zn2(OH)10•3(H2O) |
Environment: |
Secondary mineral from veins in a metamorphosed stratiform zinc orebody. |
IMA Status: |
Approved IMA 1991 |
Locality: |
Franklin, Sussex County, New Jersey. Link to MinDat.org Location Data. |
Name Origin: |
Named for John Cianciulli, of Sussex, New Jersey, USA. |
Synonym: |
ICSD 80795 |
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IMA1990-042 |
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PDF 44-1407 |
| | Cianciulliite Image
Images:
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Cianciulliite Crystallography Axial Ratios: |
a:b:c =2.4289:1:0.8754 |
Cell Dimensions: |
a = 15.47, b = 6.369, c = 5.576, Z = 2; beta = 101.23° V = 538.88 Den(Calc)= 2.92 |
Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m |
X Ray Diffraction: |
By Intensity(I/Io): 7.61(1), 2.745(0.6), 3.96(0.5), |
Crystal Structure:
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Mouse
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| Physical Properties of Cianciulliite Cleavage: |
{100} Perfect |
Color: |
Dark brown, Dark reddish brown, Reddish brown. |
Density: |
2.87 |
Diaphaneity: |
Subtranslucent to Opaque |
Fracture: |
Flexible - Flexible fragments. |
Habit: |
Lath - Shaped like a small, thin plaster lath, tabular (rectangular) in shape. |
Habit: |
Tabular - Form dimensions are thin in one direction. |
Hardness: |
2 - Gypsum |
Luster: |
Pearly |
Streak: |
red brown |
| Optical Properties of Cianciulliite Gladstone-Dale: |
CI meas= -0.083 (Poor) - where the CI = (1-KPDmeas/KC) |
CI calc= -0.064 (Fair) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.2877,KPDmeas= 0.2927,KC= 0.2703 Ncalc = 1.78 - 1.79 Optical Data: |
Biaxial (?), a=1.76, g=1.92, bire=0.1600 |
Pleochroism (x): |
opaque. |
Pleochroism (y): |
dark brown. |
Pleochroism (z): |
opague. |
RL Anisotrophism: |
Very weak. |
RL Bireflectance: |
Very weak. |
RL Color: |
Gray. |
Reflectivity |
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| Calculated Properties of Cianciulliite Electron Density: |
Bulk Density (Electron Density)=2.90 gm/cc |
note: Specific Gravity of Cianciulliite =2.92 gm/cc. Fermion Index: |
Fermion Index = 0.01 |
Boson Index = 0.99 Photoelectric: |
PECianciulliite = 17.87 barns/electron |
U=PECianciulliite x rElectron Density= 51.88 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Cianciulliite is Not Radioactive | Cianciulliite Classification Dana Class: |
06.02.13.01 (06)Hydroxides and Oxides Containing Hydroxyl |
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(06.02)where X++ (OH)2 |
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(06.02.13)Dana Group |
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Strunz Class: |
04.FL.55 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate |
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04.F - Hydroxides (without V or U) |
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04.FL -Hydroxides with H2O ± (OH); sheets of edge-sharing octahedra |
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| Other Cianciulliite Information References: |
NAME( AntBidBlaNic3) PHYS. PROP.(Am.Min.,Vol.76,p1708-1710) OPTIC PROP.(AntBidBlaNic3) |
See Also: |
Links to other databases for Cianciulliite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - EUROmin Project 4 - Ecole des Mines de Paris 5 - Franklin Minerals(Dunn) 6 - GeoScienceWorld 7 - Google Images 8 - Google Scholar 9 - Handbook of Mineralogy (MinSocAm) 10 - Handbook of Mineralogy (UofA) 11 - MinDAT 12 - Mineralienatlas (Deutsch) 13 - Online Mineral Museum 14 - QUT Mineral Atlas 15 - Ruff.Info 16 - WWW-MINCRYST Search for Cianciulliite using: Visit our Advertisers for Cianciulliite : A Bijoux Google Search for CianciulliiteAdam's Minerals Google Search for Cianciulliite Cape Minerals Google Search for Cianciulliite Dakota Matrix Minerals Google Search for Cianciulliite Excalibur Mineral Corp. Google Search for Cianciulliite Exceptional Minerals Google Search for Cianciulliite John Betts Fine Minerals Search for Cianciulliite McDougall Minerals Google Search for Cianciulliite Mineral News Website Link Rock and Mineral Shows Google Search for Cianciulliite Weinrich Minerals, Inc. Google Search for Cianciulliite Ask about Cianciulliite here : Print or Cut-and-Paste your Cianciulliite Specimen Label here :
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