Constituent
Name
Yavapaiite
IMA name
Yavapaiite
Class
non-silicate mineral
Compound type
sulfate
Relevance
main - minor
Arrangement
in multi-phases
Mass fraction
0.04 ± 0.1
Formula
KFe3+(SO4)2
Chemical formula
K(Fe3+)(SO4)2
Elemental formula
(K+) (Fe3+) S2 O4 (O-)4
Isotope mixture type
terrestrial abundance
  Formula Name Family Number min-max Isotope mole fraction State Relevance
K+ Potassium(1+) cation element 1 constituent cation main
Fe3+ Iron(III) cation element 1 constituent cation main
(SO4)2 Sulfate anion chemical function 2 anionic radical main
Chemical functions
  Function Number
(SO4)2 2
Chemical bonds
  Bond Number
4
Oxides
Formula K_{2}O Fe_{2}O_{3} SO_{3}
Mass fraction (%) 16.41 27.81 55.78

Strunz

Class
sulfates - chromates - molybdates - tungstates (07)
Division
sulfates (selenates, etc.) without additional anions, without H2O (07.A)
Family
with medium-sized and large cations (07.AC)
Code
07.AC.15

Dana

Major class
sulfates, chromates, selenates (VI)
Class
anhydrous acid and sulfates (28)
Type
where (A++)XO4 (28.03)
Group
-Yavapaiite- group (28.03.04)
Code
28.03.04.01
Phase type
crystalline
Crystal system
monoclinic
Crystal class
prismatic
Crystal class symbol
2/m (C2h)
Crystal spacegroup
C2/m
Molar mass
287.07 g/mol
Density
2.88 g/cm^3
Refringence type
biaxial
Refringence sign
negative
Birefringence
0.105
Refraction index n_{\alpha}
1.593
Refraction index n_{\beta}
1.684
Refraction index n_{\gamma}
1.698
Dispersion V
r > v strong
Color
light pink
Diaphaneity
transparent
Luster
vitreous