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General Eulytite Information |
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 Chemical Formula: |
Bi4(SiO4)3 | ||
| Composition: |
Molecular Weight = 1,112.17 gm | ||
| Silicon 7.58 % Si 16.21 % SiO2 | |||
| Bismuth 75.16 % Bi 83.79 % Bi2O3 | |||
| Oxygen 17.26 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Empirical Formula: |
Bi4(SiO4)3 | ||
| Environment: |
Found with native bismuth. | ||
| IMA Status: |
Valid Species (Pre-IMA) 1827 | ||
| Locality: |
Saxony, near Schneeberg. Link to MinDat.org Location Data. | ||
| Name Origin: |
From the Greek eulitos = "easily liquefiable", in allusion to its low melting point. | ||
| Name Pronunciation: |
Eulytite  |
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| Synonym: |
Eulytine | ||
Eulytite Image | |||
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Images:
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Eulytite Crystallography |
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| Cell Dimensions: |
a = 10.27, Z = 4; V = 1,083.21 Den(Calc)= 6.82 | ||
| Crystal System: |
Isometric - HextetrahedralH-M Symbol (4 3m) Space Group: I 43d | ||
| X Ray Diffraction: |
By Intensity(I/Io): 4.2(1), 3.257(0.9), 2.752(0.85), | ||
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Crystal Structure:
Mouse |
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Physical Properties of Eulytite |
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| Cleavage: |
{???} Indistinct | ||
| Color: |
Colorless, Gray, Yellow, Yellow brown, Dark brown. | ||
| Density: |
6.6 | ||
| Diaphaneity: |
Transparent to translucent | ||
| Fracture: |
Brittle - Generally displayed by glasses and most non-metallic minerals. | ||
| Habit: |
Crystalline - Fine - Occurs as well-formed fine sized crystals. | ||
| Habit: |
Spherical - Spherical, rounded aggregates. | ||
| Hardness: |
4.5 - Between Fluorite and Apatite | ||
| Luster: |
Adamantine | ||
| Streak: |
white | ||
Optical Properties of Eulytite |
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| Gladstone-Dale: |
CI meas= 0.017 (Superior) - where the CI = (1-KPDmeas/KC) CI calc= 0.049 (Good) - where the CI = (1-KPDcalc/KC) KPDcalc= 0.154,KPDmeas= 0.1591,KC= 0.1619 Ncalc = 2.07 - 2.1 |
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| Optical Data: |
Isotropic, n=2.05. | ||
Calculated Properties of Eulytite |
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| Electron Density: |
Bulk Density (Electron Density)=5.58 gm/cc note: Specific Gravity of Eulytite =6.60 gm/cc. |
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| Fermion Index: |
Fermion Index = 0.0036215397 Boson Index = 0.9963784603 |
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| Photoelectric: |
PEEulytite =1,431.46 barns/electron U=PEEulytite x rElectron Density=7,985.09 barns/cc. |
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Eulytite is Not Radioactive |
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Eulytite Classification |
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| Dana Class: |
51.05.04.01 (51)Nesosilicate Insular SiO4 Groups Only | ||
| (51.05)with cations in >[6] coordination | |||
| (51.05.04)Dana Group | |||
| Strunz Class: |
09.AD.40 09 - SILICATES (Germanates) | ||
| 09.A - Nesosilicates | |||
| 09.AD -Nesosilicates without additional anions; | |||
Other Eulytite Information |
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| References: |
NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32) | ||
| See Also: |
Links to other databases for Eulytite : 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 (UofA) 9 - MinDAT 10 - Mineralienatlas (Deutsch) 11 - Online Mineral Museum 12 - QUT Mineral Atlas 13 - Ruff.Info 14 - WWW-MINCRYST Search for Eulytite using: Visit our Advertisers for Eulytite : A Bijoux Google Search for EulytiteAdam's Minerals Google Search for Eulytite Cape Minerals Google Search for Eulytite Dakota Matrix Minerals Google Search for Eulytite Excalibur Mineral Corp. Google Search for Eulytite Exceptional Minerals Google Search for Eulytite John Betts Fine Minerals Search for Eulytite McDougall Minerals Google Search for Eulytite Mineral News Website Link Rock and Mineral Shows Google Search for Eulytite Weinrich Minerals, Inc. Google Search for Eulytite Ask about Eulytite here : Print or Cut-and-Paste your Eulytite Specimen Label here :
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