Constituent
- Name
- Struvite
- IMA name
- Struvite
- Class
- non-silicate mineral
- Compound type
- phosphate
- Relevance
- main - major
- Arrangement
- single phase
- Mass
- 0.14 $\pm$ 0.002 $g$
- Mass fraction
- 1.0
- Formula
- $(NH_4)MgPO_4 \bullet 6(H_2O)$
- Chemical formula
- (NH4)MgPO4•6(H2O)
- Elemental formula
- (N+) H16 (Mg2+) P O7 (O-)3
- Isotope mixture type
- terrestrial abundance
- Oxides
-
Formula $MgO$ $P_{2}O_{5}$ $H_{2}O$ Mass fraction (%) 16.42 28.92 44.05 - Oxides comments
- N2O5 calculated as (NH4)2O = 10.61%
Strunz
- Class
- phosphates - arsenates - vanadates (08)
- Division
- phosphates without additional anions, with H2O (08.C)
- Family
- with large and medium-sized cations, RO4:H2O < 1:1 (08.CH)
- Code
- 08.CH.40
Dana
- Major class
- phosphates, arsenates, vanadates (VII)
- Class
- hydrated phosphates (40)
- Type
- where A++ B++ (XO4)·x(H2O) (40.01)
- Group
- Struvite group (40.01.01)
- Code
- 40.01.01.01
- Phase type
- crystalline
- Crystal system
- orthorhombic
- Crystal class
- pyramidal
- Crystal class symbol
- mm2 (C2v)
- Crystal spacegroup
- Pmn2(1)
- Texture
- monocrystalline
- Molar mass
- 245.41 $g/mol$
- Density
- 1.7 $g/cm^3$
- Refringence type
- biaxial
- Refringence sign
- positive
- Birefringence
- 0.0090
- Refraction index $n_{\alpha}$
- 1.495
- Refraction index $n_{\beta}$
- 1.496
- Refraction index $n_{\gamma}$
- 1.504
- Dispersion V
- relatively weak
- Color
- white, yellowish white, brownish white
- Diaphaneity
- transparent to translucent
- Luster
- vitreous