Constituent
- Name
- Mascagnite
- IMA name
- Mascagnite
- Class
- non-silicate mineral
- Compound type
- sulfate
- Relevance
- main - major
- Arrangement
- single phase
- Mass
- 0.338 $\pm$ 0.002 $g$
- Mass fraction
- 1.0
- Formula
- $(NH_4)_2SO_4$
- Chemical formula
- (NH4)2SO4
- Elemental formula
- (N+)2 H8 S O2 (O-)2
- Isotope mixture type
- terrestrial abundance
- Oxides
-
Formula $SO_{3}$ Mass fraction (%) 60.59 - Oxides comments
- calculated with N2O5 as (NH4)2O = 39.41%
Strunz
- Class
- sulfates - chromates - molybdates - tungstates (07)
- Division
- sulfates (selenates, etc.) without additional anions, without H2O (07.A)
- Family
- with only large cations (07.AD)
- Code
- 07.AD.05
Dana
- Major class
- sulfates, chromates, selenates (VI)
- Class
- anhydrous acid and sulfates (28)
- Type
- where (A+)2XO4 (28.02)
- Group
- -Mascagnite- group (28.02.01)
- Code
- 28.02.01.01
- Phase type
- crystalline
- Crystal system
- orthorhombic
- Crystal class
- dipyramidal
- Crystal class symbol
- mmm (D2h)
- Crystal spacegroup
- Pnma
- Texture
- monocrystalline
- Molar mass
- 132.14 $g/mol$
- Density
- 1.768 $g/cm^3$
- Refringence type
- biaxial
- Refringence sign
- positive
- Birefringence
- 0.0130
- Refraction index $n_{\alpha}$
- 1.52
- Refraction index $n_{\beta}$
- 1.523
- Refraction index $n_{\gamma}$
- 1.533
- Dispersion V
- relatively strong r > v
- Color
- colorless, white, gray, grayish yellow, yellow, brown
- Diaphaneity
- transparent to opaque
- Luster
- vitreous