Chemistry:Wagnerite
From HandWiki
| Wagnerite | |
|---|---|
 | |
| General | |
| Category | Phosphate mineral |
| Formula (repeating unit) | (Mg,Fe2+) 2PO 4F |
| Strunz classification | 8.BB.15 |
| Dana classification | 41.6.2.1 |
| Crystal system | Monoclinic |
| Crystal class | Prismatic (2/m) |
| Space group | P21/a’’ |
| Identification | |
| Color | Yellow, grayish, red, reddish brown, brown, green |
| Crystal habit | Elongate and striated prisms, tabular, massive |
| Cleavage | {100} imperfect, {120} imperfect |
| Fracture | Sub-conchoidal, splintery |
| Tenacity | Brittle |
| Mohs scale hardness | 5–5.5 |
| |re|er}} | Vitreous, resinous |
| Diaphaneity | Translucent, nearly opaque |
| Specific gravity | 3.15 |
| Density | 3.15 (measured), 3.15 (calculated) |
| Optical properties | Biaxial (+), colorless (transmitted light) |
| Pleochroism | None |
| 2V angle | 25°–35° (measured) |
| Solubility | Soluble in acids |
| References | [1][2][3] |
Wagnerite is a mineral, a combined phosphate and fluoride of iron and magnesium, with the formula (Mg,Fe2+)
2PO
4F.[1][2] It occurs in pegmatite associated with other phosphate minerals.[3] It is named after Franz Michael von Wagner (1768–1851), a German mining official in Munich.[1]
References
- ↑ 1.0 1.1 1.2 Mindat – Wagnerite
- ↑ 2.0 2.1 Webmineral – Wagnerite
- ↑ 3.0 3.1 "Handbook of Mineralogy – Wagnerite". http://www.handbookofmineralogy.com/pdfs/wagnerite.pdf.
- ↑ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine 85 (3): 291–320. doi:10.1180/mgm.2021.43. Bibcode: 2021MinM...85..291W.
Bibliography
- Palache, P.; Berman H.; Frondel, C. (1960). "Dana's System of Mineralogy, Volume II: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. (Seventh Edition)" John Wiley and Sons, Inc., New York, pp. 845–847.
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