Sulfoborite
Mg3[B(OH)4]2(SO4)(OH,F)2 [CNMNC approved formula]
Named for the sulfur and boron in the composition.
| IMA status : | Valid species (Pre-IMA 1893) Grandfathered |
| CLASSIFICATION | |
| Dana (8th edition) : |
27.01.05.01 |
| (27) Compound Borates | |
| (27.01) | |
| (27.01.05) | |
| Nickel-Strunz (10th edition) : |
06.AC.55 |
| (06) Borates | |
| (06.A) Monoborates | |
| (06.AC) B(O,OH)4, without and with additional anions; 1(T), 1(T)+OH, etc | |
| Crystal system: | Orthorhombic System |
| Point group (H-M): | mmm (or 2/m 2/m 2/m) — dipyramidal |
| Other Properties: | H2O Soluble. Gemstone Extremely Rare. |