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Guanine Mineral Data
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General Guanine Information
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 Chemical Formula: |
C5H3(NH2)N4O |
| Composition: |
Molecular Weight = 151.13 gm |
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Hydrogen 3.33 % H |
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Carbon 39.74 % C |
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Nitrogen 46.34 % N |
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Oxygen 10.59 % O |
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______ |
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100.00 % |
| Empirical Formula: |
C5H5N5O |
| Environment: |
In guano derived from seabirds and formed as a reaction to bat guano and urine with limestone in the cave. |
| IMA Status: |
Valid Species (Pre-IMA) 1844 |
| Locality: |
North Chincha Isalnd, Peru and Murra-el-elevyn cave, Cockabiddy Nullabor Plani WA, Australia. Link to MinDat.org Location Data. |
| Name Origin: |
Namd for its derivation from and association with guano. |
| Name Pronunciation: |
Guanine  |
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Guanine Crystallography
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| Axial Ratios: |
a:b:c =1.464:1:0.3232 |
| Cell Dimensions: |
a = 16.51, b = 11.277, c = 3.645, Z = 4; beta = 96.8° V = 673.86 Den(Calc)= 1.49 |
| Crystal System: |
Monoclinic - Prismatic H-M Symbol (2/m) Space Group: P 21/n |
| X Ray Diffraction: |
By Intensity(I/Io): 3.22(1), 6.32(0.7), 3.53(0.5), |
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Physical Properties of Guanine
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| Color: |
White. |
| Density: |
1.485 |
| Hardness: |
1-2 - Between Talc and Gypsum |
| Streak: |
white |
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Calculated Properties of Guanine
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| Electron Density: |
Bulk Density (Electron Density)=1.54 gm/cc
note: Specific Gravity of Guanine =1.49 gm/cc.
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| Fermion Index: |
Fermion Index = 0.46
Boson Index = 0.54 |
| Photoelectric: |
PEGuanine = 0.23 barns/electron
U=PEGuanine x rElectron Density= 0.35 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Guanine is Not Radioactive |
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Guanine Classification
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| Dana Class: |
50.04.05.01 (50)Salts of Organic Acids |
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(50.04)with miscellaneous formulae |
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(50.04.05)Dana Group |
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50.04.05.01 Guanine C5H3(NH2)N4O P 21/n 2/m |
| Strunz Class: |
10.CA.30 10 - ORGANIC COMPOUNDS |
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10.C - Miscellaneous Organic Minerals |
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10.CA -Miscellaneous Organic Materials |
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10.CA.30 Guanine C5H3(NH2)N4O P 21/n 2/m |
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10.CA.30 Tinnunculite* C10H12N6O8(?) Unk Ortho |
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Other Guanine Information
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| References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) |
| See Also: |
Links to other databases for Guanine :
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 Guanine Specimen Label here :
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Guanine
C5H3(NH2)N4O
Dana No: 50.04.05.01 Strunz No: 10.CA.30
Locality:
Notes:
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