Piretit

Structural context

Piretite
Crystal System orthorhombicCrystal Class orthorhombic pyramidalSpace Group Pmn21

Chemical context

Stoichiometric formulas

Piretite
mindat.org
  • March 13, 2023Ca(UO2)3(SeO3)2(OH)4 ·4H2O
IMA
  • March 13, 2023Ca(UO2)3(Se4+O3)2(OH)4 · 4H2O
mineralogy.rocks
  • Aug. 30, 2022Ca(U6+O2)3(Se4+O3)2(OH)4·4H2O

Physical properties

ColorColor entities, recognized using a custom trained NER model
  • lemon-yellow
Color noteOriginal color note from the source
Lemon-yellow
StreakStreak entities, recognized using a custom trained NER model
  • pale yellow
Streak noteOriginal streak note from the source
Pale yellow
Lustre
Pearly
Fracture
Irregular/Uneven
Transparency
Transparent
Translucent
Hardness
2.5
Calculated density
3.87