General Radtkeite Information Chemical Formula: |
Hg3S2ClI |
Composition: |
Molecular Weight = 828.26 gm |
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Mercury 72.65 % Hg 78.45 % HgO |
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Sulfur 7.74 % S 7.74 % S2- |
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- % S -3.86 % -O=S |
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Iodine 15.32 % I 15.32 % I |
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- %
I -0.97 % -O=I2 |
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Chlorine 4.28 % Cl 4.28 % Cl |
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- %
Cl -0.97 % -O=Cl2 |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
Empirical Formula: |
Hg3S2ClI |
Environment: |
Secondary Hg mineral. |
IMA Status: |
Approved IMA 1991 |
Locality: |
McDermitt mercury mine, Humboldt County, Nevada, USA. Link to MinDat.org Location Data. |
Name Origin: |
Named for Arthur S. Radtke (1936-2004), geologist, U. S. Geological Survey. |
Name Pronunciation: |
Radtkeite + Pronunciation |
Synonym: |
IMA1989-030 |
| | Radtkeite Image
Images:
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Radtkeite Crystallography Axial Ratios: |
a:b:c =1.8456:1:1.444 |
Cell Dimensions: |
a = 16.827, b = 9.117, c = 13.165, Z = 8; beta = 130.17° V = 1,543.30 Den(Calc)= 7.13 |
Crystal System: |
Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m |
X Ray Diffraction: |
By Intensity(I/Io): 2.54(1), 2.65(0.85), 3.89(0.48), |
Crystal Structure:
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Mouse
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| Physical Properties of Radtkeite Cleavage: |
{010} Perfect, {001} Very Good, {100} Very Good |
Color: |
Bright yellow orange, Orange. |
Density: |
7 |
Diaphaneity: |
Translucent to Opaque |
Fracture: |
Hackly - Jagged, torn surfaces, (e.g. fractured metals). |
Habit: |
Microscopic Crystals - Crystals visible only with microscopes. |
Hardness: |
2-3 - Gypsum-Calcite |
Luster: |
Adamantine |
Streak: |
yellow orange |
| Optical Properties of Radtkeite Gladstone-Dale: |
CI meas= 0.013 (Superior) - where the CI = (1-KPDmeas/KC) |
CI calc= 0.031 (Excellent) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.1403,KPDmeas= 0.1429,KC= 0.1448 Ncalc = 2.01 - 2.03 Optical Data: |
Biaxial (+), b=2 |
| Calculated Properties of Radtkeite Electron Density: |
Bulk Density (Electron Density)=5.78 gm/cc |
note: Specific Gravity of Radtkeite =7.00 gm/cc. Fermion Index: |
Fermion Index = 0.21 |
Boson Index = 0.79 Photoelectric: |
PERadtkeite =1,308.53 barns/electron |
U=PERadtkeite x rElectron Density=7,564.32 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Radtkeite is Not Radioactive | Radtkeite Classification Dana Class: |
10.03.06.01 (10)Oxyhalides and Hydroxyhalides |
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(10.03)where (A)3 (O,OH)2 Xq |
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(10.03.06)Dana Group |
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Strunz Class: |
02.FC.15d 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf |
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02.F - Sulfides of Arsenic, Alkalies; Sulfides with Halide, Oxide, Hydroxide, H2O |
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02.FC -With Cl, Br, I (halide-sulfides) |
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| Other Radtkeite Information References: |
NAME( Dana8) PHYS. PROP.(Dana8, AmMin 89:1833) OPTIC PROP.(Dana8) |
See Also: |
Links to other databases for Radtkeite : |
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 Radtkeite using: Visit our Advertisers for Radtkeite : A Bijoux Google Search for RadtkeiteAdam's Minerals Google Search for Radtkeite Cape Minerals Google Search for Radtkeite Dakota Matrix Minerals Google Search for Radtkeite Excalibur Mineral Corp. Google Search for Radtkeite Exceptional Minerals Google Search for Radtkeite John Betts Fine Minerals Search for Radtkeite McDougall Minerals Google Search for Radtkeite Mineral News Website Link Rock and Mineral Shows Google Search for Radtkeite Weinrich Minerals, Inc. Google Search for Radtkeite Ask about Radtkeite here : Print or Cut-and-Paste your Radtkeite Specimen Label here :
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