Guanajuatite
Bi2Se3 [CNMNC approved formula]
Named for the locality: In the Santa Catarina and La Industrial mines, Sierra de Santa Rosa, near Guanajuato, Mexico.
| IMA status : | Valid species (Pre-IMA 1873) Grandfathered |
| CLASSIFICATION | |
| Dana (8th edition) : |
02.11.02.04 |
| (02) Sulfides - Including Selenides and Tellurides | |
| (02.11) where Am Bn Xp, with (m+n):p=2:3 | |
| (02.11.02) Stibnite Group (Orthorhombic: Pbnm) | |
| Nickel-Strunz (10th edition) : |
02.DB.05a |
| (02) Sulfides | |
| (02.D) Metal Sulfides, M:S = 3:4 and 2:3 | |
| (02.DB) M:S = 2:3 | |
| Crystal system: | Orthorhombic System |
| Point group (H-M): | mmm (or 2/m 2/m 2/m) — dipyramidal |