General Parvo-mangano-edenite Information Chemical Formula: |
Na(CaMn)2Mg5(Si7Al)O22(OH)2 |
Composition: |
Molecular Weight = 851.64 gm |
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Potassium 0.09 % K 0.11 % K2O |
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Sodium 2.00 % Na 2.69 % Na2O |
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Calcium 5.98 % Ca 8.36 % CaO |
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Magnesium 12.87 % Mg 21.34 % MgO |
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Titanium 0.06 % Ti 0.09 % TiO2 |
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Manganese 6.52 % Mn 8.41 % MnO |
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Aluminum 3.33 % Al 6.29 % Al2O3 |
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Iron 0.52 % Fe 0.42 % FeO / 0.28 % Fe2O3 |
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Silicon 23.32 % Si 49.88 % SiO2 |
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Hydrogen 0.24 % H 2.12 % H2O |
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Oxygen 45.09 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
Na0.74K0.02Ca1.27Mn2+0.73Mg4.51Mn2+0.28Fe2+0.05Fe3+0.03Al0.12Ti0.01Si7.07Al0.93O22(OH)2
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Environment: |
Found in manganiferous pod in the Grenville marble of the Arnold open pit. Parvo-manganotremolite often occurs at the rims of parvo-mangano-edenite. Amphibole group |
IMA Status: |
Approved IMA 2003 (Dana # Added) |
Locality: |
Grenville Marble of the Arnold mine, Fowler, St. Lawrence Co., New York USA, Link to MinDat.org Location Data. |
Name Origin: |
Named as per current IMA amphibole nomenclature (Burke and Leake 2004; Can. Mineral., 42, 1881-1883). |
Synonym: |
IMA2003-062 |
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Manganoan silicic edenite |
| | Parvo-mangano-edenite Image
Images:
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Parvo-mangano-edenite Crystallography Axial Ratios: |
a:b:c =0.5444:1:0.2927 |
Cell Dimensions: |
a = 9.826, b = 18.0487, c = 5.284, Z = 2; beta = 104.55° V = 907.05 Den(Calc)= 3.12 |
Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m |
X Ray Diffraction: |
By Intensity(I/Io): 2.708(1)(151 ), 3.123(0.75)(310 ), 3.386(0.67)(131 ),8.414(0.63)(110 ), 3.273(0.59)(240 ), 2.533(0.57)(202 ), 2.593(0.57)(061 ), 9.024(0.51)(020 ), 2.944(0.5)(221 ), |
Crystal Structure:
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Mouse
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| Physical Properties of Parvo-mangano-edenite Cleavage: |
{110} Good, {110} Good |
Color: |
Very pale pinkish brown. |
Diaphaneity: |
Translucent |
Fracture: |
Brittle - Uneven - Very brittle fracture producing uneven fragments. |
Habit: |
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). |
Hardness: |
6 - Orthoclase |
Luster: |
Vitreous (Glassy) |
| Optical Properties of Parvo-mangano-edenite Gladstone-Dale: |
CI calc= 0.028 (Excellent) - where the CI = (1-KPDcalc/KC) |
KPDcalc= 0.2024,KC= 0.2081 Ncalc = 1.65 Optical Data: |
Biaxial (-), a=1.62, b=1.632, g=1.642, bire=0.0220 |
| Calculated Properties of Parvo-mangano-edenite Electron Density: |
Bulk Density (Electron Density)=3.09 gm/cc |
note: Specific Gravity of Parvo-mangano-edenite =3.12 gm/cc. Fermion Index: |
Fermion Index = 0.02 |
Boson Index = 0.98 Photoelectric: |
PEParvo-mangano-edenite = 3.85 barns/electron |
U=PEParvo-mangano-edenite x relectron= 11.91 barns/cc. Radioactivity: |
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GRapi = 1.32 (Gamma Ray American Petroleum Institute Units)
Estimated Radioactivity from Parvo-mangano-edenite - barely detectable | Parvo-mangano-edenite Classification Dana Class: |
66.01.03b.20 (66)Inosilicate Double-Width Unbranched Chains, W=2 |
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(66.01)with P=2 amphibole configuration |
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(66.01.03b)Group 3, the sodic-calcic amphiboles |
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Strunz Class: |
09.DE.10 09 - SILICATES (Germanates) |
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09.D - Inosilicates* Structural terminology according to Liebau (1985) |
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09.DE -Inosilicates with 2-periodic double chains, Si4O11; amphibole family |
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| Other Parvo-mangano-edenite Information References: |
NAME( AmMin, v91,p526) PHYS. PROP.(AmMin, v91,p526) OPTIC PROP.(AmMin, v91,p526) |
See Also: |
Links to other databases for Parvo-mangano-edenite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - GeoScienceWorld 4 - Google Images 5 - Google Scholar 6 - MinDAT 7 - Mineralienatlas (Deutsch) 8 - Online Mineral Museum 9 - QUT Mineral Atlas 10 - Ruff.Info Search for Parvo-mangano-edenite using: Visit our Advertisers for Parvo-mangano-edenite : A Bijoux Google Search for Parvo-mangano-edeniteAdam's Minerals Google Search for Parvo-mangano-edenite Cape Minerals Google Search for Parvo-mangano-edenite Dakota Matrix Minerals Google Search for Parvo-mangano-edenite Excalibur Mineral Corp. Google Search for Parvo-mangano-edenite Exceptional Minerals Google Search for Parvo-mangano-edenite John Betts Fine Minerals Search for Parvo-mangano-edenite McDougall Minerals Google Search for Parvo-mangano-edenite Mineral News Website Link Rock and Mineral Shows Google Search for Parvo-mangano-edenite Weinrich Minerals, Inc. Google Search for Parvo-mangano-edenite Ask about Parvo-mangano-edenite here : Print or Cut-and-Paste your Parvo-mangano-edenite Specimen Label here :
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