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Northupite is an uncommon evaporite mineral, with the chemical formula Na3Mg(CO3)2Cl. It occurs as colourless to dark grey or brown octahedral crystals and as globular masses. In synthetic material it forms a series with tychite (Na6Mg2(CO3)4SO4).
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co3 tychite california occurs searles lake san formula na3mg 2cl colourless grey brown octahedral crystals globular references carbonate evaporite pirssonite
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Northupite | Category | Carbonate minerals | 1.00 | infobox |
| Northupite | Colour | Colourless, pale yellow, grey, brown; colourless in transmitted light | 1.00 | infobox |
| Northupite | Crystal class | Diploidal (m3) H-M symbol: (2/m3) | 1.00 | infobox |
| Northupite | Crystal habit | Octahedral crystals; globular, massive | 1.00 | infobox |
| Northupite | Crystal system | Isometric | 1.00 | infobox |
| Northupite | Diaphaneity | Transparent | 1.00 | infobox |
| Northupite | Formula | Na3Mg(CO3)2Cl | 1.00 | infobox |
| Northupite | Fracture | Conchoidal | 1.00 | infobox |
| Northupite | IMA symbol | Nup | 1.00 | infobox |
| Northupite | Lustre | Vitreous | 1.00 | infobox |
| Northupite | Mohs scale hardness | .mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-height:0;vertical-align:super}.mw-parser-output .frac .de… | 1.00 | infobox |
| Northupite | Optical properties | Isotropic | 1.00 | infobox |
| Northupite | Refractive index | n = 1.5144 (to 1.550 with iron substitution) | 1.00 | infobox |
| Northupite | Solubility | Readily soluble in dilute acids with effervescence. Decomposed by hot water with the separation of magnesium carbonate. | 1.00 | infobox |
| Northupite | Space group | Fd3 | 1.00 | infobox |
| Northupite | Specific gravity | 2.380–2.407 | 1.00 | infobox |
| Northupite | Strunz classification | 5.BF.05 | 1.00 | infobox |
| Northupite | Tenacity | Brittle | 1.00 | infobox |
| Northupite | Unit cell | a = 13.98 Å; Z = 16 | 1.00 | infobox |
| Northupite | is a | uncommon evaporite mineral | 0.90 | text |
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