Nitratine (original) (raw)
Colour:
Colourless, white, lightly tinted by impurities (red-brown, grey, yellowish); colourless in transmitted light
Name:
In allusion to the composition, being a NITRATe.
Nitratine, sodium nitrate, is found as an efflorescence in hot dry regions.
Colour:
Colourless, white, lightly tinted by impurities (red-brown, grey, yellowish); colourless in transmitted light
Cleavage:
Perfect
On {1011} perfect; on {0112} and {0001} reported as imperfect.
Parting:
Twin gliding noted with K1 {0112}, K2 {0111}.
RI values:
_n_ω = 1.330 - 1.336 _n_ε = 1.580 - 1.587
δ = 0.250
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Class (H-M):
3_m_ _(_32/m ) - Hexagonal Scalenohedral
Cell Parameters:
a = 5.06 Å, c = 16.82 Å
Unit Cell V:
372.96 ų (Calculated from Unit Cell)
Morphology:
Crystals rhombohedral {1011}. Massive granular, incrustations.
Twinning:
1. On {0112}, often elongated along the common rhombohedral edge; 2. On {0001}, as penetration twins; 3. On {0221}, as aggregates of three or six individuals at times; 4. On {1011}, rare.
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0009441 | Nitratine | Paul G L, Pryor A W (1972) The study of sodium nitrate by neutron diffraction Acta Crystallographica B28 2700-2702 |  |
1972 | synthetic | 0 | 293 |
| 0009442 | Nitratine | Paul G L, Pryor A W (1972) The study of sodium nitrate by neutron diffraction Acta Crystallographica B28 2700-2702 | |
1972 | synthetic | 0 | 293 |
| 0009443 | Nitratine | Paul G L, Pryor A W (1972) The study of sodium nitrate by neutron diffraction Acta Crystallographica B28 2700-2702 | |
1972 | synthetic | 0 | 293 |
| 0009444 | Nitratine | Paul G L, Pryor A W (1972) The study of sodium nitrate by neutron diffraction Acta Crystallographica B28 2700-2702 | |
1972 | synthetic | 0 | 293 |
| 0009445 | Nitratine | Paul G L, Pryor A W (1972) The study of sodium nitrate by neutron diffraction Acta Crystallographica B28 2700-2702 | |
1972 | synthetic | 0 | 293 |
| 0009446 | Nitratine | Paul G L, Pryor A W (1972) The study of sodium nitrate by neutron diffraction Acta Crystallographica B28 2700-2702 | |
1972 | synthetic | 0 | 293 |
| 0009447 | Nitratine | Paul G L, Pryor A W (1972) The study of sodium nitrate by neutron diffraction Acta Crystallographica B28 2700-2702 | |
1972 | synthetic | 0 | 293 |
| 0009448 | Nitratine | Paul G L, Pryor A W (1972) The study of sodium nitrate by neutron diffraction Acta Crystallographica B28 2700-2702 | |
1972 | synthetic | 0 | 293 |
| 0009449 | Nitratine | Paul G L, Pryor A W (1972) The study of sodium nitrate by neutron diffraction Acta Crystallographica B28 2700-2702 | |
1972 | synthetic | 0 | 293 |
| 0009450 | Nitratine | Paul G L, Pryor A W (1972) The study of sodium nitrate by neutron diffraction Acta Crystallographica B28 2700-2702 | |
1972 | synthetic | 0 | 293 |
| 0009451 | Nitratine | Paul G L, Pryor A W (1972) The study of sodium nitrate by neutron diffraction Acta Crystallographica B28 2700-2702 | |
1972 | synthetic | 0 | 293 |
| 0009452 | Nitratine | Paul G L, Pryor A W (1972) The study of sodium nitrate by neutron diffraction Acta Crystallographica B28 2700-2702 | |
1972 | synthetic | 0 | 293 |
| 0009453 | Nitratine | Paul G L, Pryor A W (1972) The study of sodium nitrate by neutron diffraction Acta Crystallographica B28 2700-2702 | |
1972 | synthetic | 0 | 293 |
| 0009454 | Nitratine | Paul G L, Pryor A W (1972) The study of sodium nitrate by neutron diffraction Acta Crystallographica B28 2700-2702 | |
1972 | synthetic | 0 | 293 |
| 0012858 | Nitratine | Ahtee M, Nurmela M, Suortti P, Jarvinen M (1989) Correction for preferred orientation in Rietveld refinement Journal of Applied Crystallography 22 261-268 | 1989 | 0 | 293 | ||
| 0017935 | Nitratine | Elliott N (1937) A Redetermination of the Carbon - Oxygen Distance in Calcite and the Nitrogen - Oxygen Distance in Sodium Nitrate _cod_database_code 1011029 Journal of the American Chemical Society 59 1380-1382 | 1937 | 0 | 293 |
CIF Raw Data - click here to close
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Radiation - Copper Kα
Data courtesy of RRUFF project at University of Arizona, used with permission.
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.03 Å | (100) |
| 2.311 Å | (25) |
| 2.81 Å | (16) |
| 1.898 Å | (16) |
| 2.53 Å | (10) |
| 2.125 Å | (10) |
| 1.880 Å | (8) |
Comments:
Synthetic. The data are from Swanson et al. (1956).
Thermal Behaviour:
Melting Point 306.8°C. Thermal conductivity greatest parallel to [0001].
Notes:
Slightly deliquescent. Readily soluble in water.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 
symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. 
- Good crystals or important locality for species. 
- World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.