Smoky Quartz Crystal with Brazilian Rutile
Smoky Quartz crystal with Brazilian Rutile.
Beautiful purity! This is a natural smoky quartz with rare Rutile inclusions.
Size: 14.5 cm by 6.5 cm by 5.5 cm for 655gr
Chemical Formula: SiO2
Crystal system: Trigonal
Hardness Mohs' scale: 7
Definition: Quartz, found throughout the world (Brazil, Uruguay, Africa, Mexico, Bulgaria, France...). Quartz is a mineral species of the silicatec group, a subgroup of the tectosilicate group, composed of silicon dioxide, or silica. It occurs either as large colorless, colored or smoky crystals, or as microscopic, translucent crystals.