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Nahcolite is a soft, colourless or white carbonate mineral with the composition of sodium bicarbonate (NaHCO3) also called thermokalite. It crystallizes in the monoclinic system.
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mineral monoclinic mount occurs lake california colourless white carbonate sodium bicarbonate nahco3 system references italy na efflorescence differentiated massifs evaporite
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Nahcolite | Birefringence | δ = 0.206 | 1.00 | infobox |
| Nahcolite | Category | Carbonate mineral | 1.00 | infobox |
| Nahcolite | Cleavage | {101} perfect, {111} good, {100} distinct | 1.00 | infobox |
| Nahcolite | Colour | White to colourless, may be grey to brown | 1.00 | infobox |
| Nahcolite | Crystal class | Prismatic (2/m) (same H-M symbol) | 1.00 | infobox |
| Nahcolite | Crystal habit | Elongated crystals, fibrous masses, friable porous aggregates | 1.00 | infobox |
| Nahcolite | Crystal system | Monoclinic | 1.00 | infobox |
| Nahcolite | Dana classification | 13.01.01.01 | 1.00 | infobox |
| Nahcolite | Diaphaneity | Transparent to translucent | 1.00 | infobox |
| Nahcolite | Formula | Sodium bicarbonate (NaHCO3) | 1.00 | infobox |
| Nahcolite | Fracture | Conchoidal | 1.00 | infobox |
| Nahcolite | IMA symbol | Nah | 1.00 | infobox |
| Nahcolite | Lustre | Vitreous – resinous | 1.00 | infobox |
| Nahcolite | Mohs scale hardness | 2.5 | 1.00 | infobox |
| Nahcolite | Optical properties | Biaxial (−) | 1.00 | infobox |
| Nahcolite | Refractive index | nα = 1.377 nβ = 1.503 nγ = 1.583 | 1.00 | infobox |
| Nahcolite | Solubility | Soluble in water | 1.00 | infobox |
| Nahcolite | Space group | P21/n | 1.00 | infobox |
| Nahcolite | Specific gravity | 2.21 | 1.00 | infobox |
| Nahcolite | Streak | White | 1.00 | infobox |
| Nahcolite | Strunz classification | 5.AA.15 | 1.00 | infobox |
| Nahcolite | Tenacity | Brittle | 1.00 | infobox |
| Nahcolite | Twinning | Common on | 1.00 | infobox |
| Nahcolite | Ultraviolet fluorescence | Short UV=blue-white cream-yellow, Long UV=cream-yellow | 1.00 | infobox |
| Nahcolite | Unit cell | a = 7.47, b = 9.68 c = 3.48 [Å]; β = 93.38°; Z = 4 | 1.00 | infobox |
| Nahcolite | is a | soft | 0.90 | text |
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