| Wagnerite | |
| Category: | Phosphate mineral |
| Imasymbol: | Wag[1] |
| Strunz: | 8.BB.15 |
| Dana: | 41.6.2.1 |
| System: | Monoclinic |
| Class: | Prismatic (2/m) |
| Symmetry: | P21/a’’ |
| Color: | Yellow, grayish, red, reddish brown, brown, green |
| Habit: | Elongate and striated prisms, tabular, massive |
| Cleavage: | imperfect, imperfect |
| Fracture: | Sub-conchoidal, splintery |
| Tenacity: | Brittle |
| Mohs: | 5–5.5 |
| Luster: | Vitreous, resinous |
| Opticalprop: | Biaxial (+), colorless (transmitted light) |
| 2V: | 25°–35° (measured) |
| Pleochroism: | None |
| Gravity: | 3.15 |
| Density: | 3.15 (measured), 3.15 (calculated) |
| Solubility: | Soluble in acids |
| Diaphaneity: | Translucent, nearly opaque |
Wagnerite is a mineral, a combined phosphate and fluoride of iron and magnesium, with the formula .[2] [3] It occurs in pegmatite associated with other phosphate minerals.[4] It is named after Franz Michael von Wagner (1768–1851), a German mining official in Munich.[2]