cyrilovite
Sign in to saveCyrilovite (NaFe33+(PO4)2(OH)4·2(H2O)) is a hydrous sodium iron phosphate mineral. It is isomorphous and isostructural with wardite, the sodium aluminium counterpart.
Key facts
- Mineral.name
- Cyrilovite
- Mineral.category
- Phosphate mineral
- Mineral.image
- Cyrilovite-141091.jpg
- Mineral.imagesize
- 260px
- Mineral.formula
- NaFe3+3(PO4)2(OH)4·2(H2O)
- Mineral.IMAsymbol
- Cyr
- Mineral.strunz
- 8.DL.10
- Mineral.dana
- 42.07.08.01
- Mineral.system
- Tetragonal
- Mineral.class
- Trapezohedral (422) H–M symbol: (422)
- Mineral.symmetry
- P41212
- Mineral.color
- Bright yellow, honey-yellow, orange to brownish yellow, brown
- Mineral.habit
- Massive, granular, pseudo cubic, radiating to botryoidal aggregates and crusts
- Mineral.cleavage
- None
- Mineral.fracture
- Conchoidal
- Mineral.mohs
- 4
- Mineral.luster
- Vitreous
- Mineral.streak
- Yellow
via Wikipedia infobox
~4 min read
Encyclopedic overview
5 sectionsContents
- Composition
- Geologic occurrence
- Structure
- Physical properties
- References
Cyrilovite (NaFe33+(PO4)2(OH)4·2(H2O)) is a hydrous sodium iron phosphate mineral. It is isomorphous and isostructural with wardite, the sodium aluminium counterpart.
Cyrilovite is found in granitic pegmatites. It was first discovered in 1953 in a pegmatite at Cyrilov, near Velké Meźiřiči, West Moravia, Czech Republic.
Excerpted from Wikipedia’s “cyrilovite” article, available under the CC BY-SA 4.0 licence.