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Evenkite Mineral Data
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General Evenkite Information
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 Chemical Formula: |
(CH3)2(CH2)22 |
| Composition: |
Molecular Weight = 338.66 gm |
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Hydrogen 14.88 % H |
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Carbon 85.12 % C |
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______ |
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100.00 % |
| Empirical Formula: |
C24H50 |
| Environment: |
In vugs in a quartz vein cutting vesicular lava. |
| IMA Status: |
Valid Species (Pre-IMA) 1953 |
| Locality: |
Evenki Region, Lower Tunguska River, Siberia, Russia. Link to MinDat.org Location Data. |
| Name Origin: |
Names after its locality |
| Name Pronunciation: |
Evenkite  |
| Synonym: |
n-tetracosane |
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Evenkite Image |
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Images:
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Evenkite
Comments: Colorless flake of evenkite on an orange background.
Location: Khavokiperskiye Rocks polymetallic occurrence, Evenkia, Nizhnyaya Tunguska River, Nizhnyaya Tunguska River Basin, Krasnoyarskiy Kray, Eastern-Siberian Region, Russia.
Scale: Size 4 mm.
© Thomas Witzke / Abraxas-Verlag |
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Evenkite Crystallography
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| Axial Ratios: |
a:b:c =1.5:1:13.2228 |
| Cell Dimensions: |
a = 7.47, b = 4.98, c = 65.85, Z = 4; V = 2,449.66 Den(Calc)= 0.92 |
| Crystal System: |
Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Pbcm |
| X Ray Diffraction: |
By Intensity(I/Io): 4.18(1), 3.74(0.9), 2.25(0.8), |
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Physical Properties of Evenkite
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| Cleavage: |
{001} Perfect |
| Color: |
Colorless, Yellowish green, White, Yellowish white. |
| Density: |
0.87 |
| Diaphaneity: |
Transparent |
| Habit: |
Disseminated - Occurs in small, distinct particles dispersed in matrix. |
| Habit: |
Granular - Generally occurs as anhedral to subhedral crystals in matrix. |
| Hardness: |
1 - Talc |
| Luster: |
Waxy |
| Streak: |
white |
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Optical Properties of Evenkite
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| Optical Data: |
Biaxial (+), a=1.504, b=1.504, g=1.553, bire=0.0490 |
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Calculated Properties of Evenkite
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| Electron Density: |
Bulk Density (Electron Density)=1.05 gm/cc
note: Specific Gravity of Evenkite =0.92 gm/cc.
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| Fermion Index: |
Fermion Index = 0.0093853841
Boson Index = 0.9906146159 |
| Photoelectric: |
PEEvenkite = 0.12 barns/electron
U=PEEvenkite x rElectron Density= 0.12 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Evenkite is Not Radioactive |
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Evenkite Classification
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| Dana Class: |
50.03.06.01 (50)Salts of Organic Acids |
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(50.03)(Hydrocarbons) |
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(50.03.06)Dana Group |
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50.03.06.01 Evenkite (CH3)2(CH2)22 Pbcm 2/m 2/m 2/m |
| Strunz Class: |
10.BA.50 10 - ORGANIC COMPOUNDS |
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10.B - Hydrocarbons |
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10.BA -Hydrocarbons |
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10.BA.50 Evenkite (CH3)2(CH2)22 Pbcm 2/m 2/m 2/m |
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Other Evenkite Information
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| References: |
NAME( Dana8) PHYS. PROP.(AmMin, v90, p1468) OPTIC PROP.(Dana8) |
| See Also: |
Links to other databases for Evenkite :
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
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Print or Cut-and-Paste your Evenkite Specimen Label here :
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Evenkite
(CH3)2(CH2)22
Dana No: 50.03.06.01 Strunz No: 10.BA.50
Locality:
Notes:
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