Northupite
Na3Mg(CO3)2Cl [CNMNC approved formula]
Named after C. H. Northup (b.1861), grocer, of San Jose, California, who found the first specimen.
| IMA status : | Valid species (Pre-IMA 1885) Grandfathered |
| CLASSIFICATION | |
| Dana (8th edition) : |
16a.03.09.01 |
| (16a) Carbonates - Hydroxyl or Halogen | |
| (16a.03) where (A B)2 (XO3) Zq | |
| (16a.03.09) | |
| Nickel-Strunz (10th edition) : |
05.BF.05 |
| (05) Carbonates and Nitrates | |
| (05.B) Carbonates with additional anions, without H2O | |
| (05.BF) With (Cl), SO4, PO4, TeO3 | |
| Crystal system: | Cubic System |
| Point group (H-M): | m3 (or 2/m 3) — diploidal |
| Other Properties: | H2O Soluble. |