- chemical formula
- Zn₂Fe²⁺(PO₄)₂·4H₂O
- density
- 3.1
- IMA Mineral Symbol
- Pp
- Mohs' hardness
- 3.0
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 8.CA.40
- Nickel-Strunz 9th edition (updated 2009)
- 8.CA.40
- Strunz 8th edition (series ID, updated)
- VII/C.06