Formula: Nb2(O,OH)6 . nH2O
Origin of name: From potassium (kalium) and pyrochlore
Crystal system: Cubic/Isometric
Crystal class: 4/m 3 2/m
Twinning:
Unit cell: a = 10.604
Colour: Greenish
Diaphaneity: Translucent to opaque
Luster: Vitreous, resinous
Habit: Crystals octahedral
Hardness: 4 to 4.5
Specific gravity: 3.40 to 3.48
Cleavage: None
Tenacity: Brittle, uneven fracture
Streak: Gray white
Synonyms/varieties:
Comments:
| Back to Alphabetical list | Colour photos | Optical properties/Thin sections | SEM images | TEM images | vibrational spectra description | IR spectra | Raman spectra | N-IR spectra | F-IR spectra | IES spectra |