Rumanit

Structural context

Opal
Crystal System amorphous

Chemical context

Stoichiometric formulas

Opal
mindat.org
  • March 13, 2023SiO2·nH2O
IMA
  • March 13, 2023SiO2 · nH2O
mineralogy.rocks
  • Aug. 30, 2022SiO2·nH2O

Physical properties

ColorColor entities, recognized using a custom trained NER model
  • colourless
                  Color noteOriginal color note from the source
                  Colourless, white, yellow, red, orange, green, brown, black, blue
                  StreakStreak entities, recognized using a custom trained NER model
                    Streak noteOriginal streak note from the source
                    White
                    Lustre
                    Vitreous
                    Waxy
                    Greasy
                    Dull
                    Fracture
                    Irregular/Uneven
                    Splintery
                    Conchoidal
                    Transparency
                    Transparent
                    Translucent
                    Tenacity
                    brittle
                    Hardness
                    5.5—6.5
                    Measured density
                    1.9—2.3