Macrokristalijne kwarts

Macrokristallijne Quartz
Quartz has been known and appreciated since prehistoric times. The oldest known name, Kristallos, is recorded by Theophrastus in about 300-325 BCE.


Data:

Formula: SiO2
Color: Colorless, white, yellow, orange, red, pink, purple, blue, green, brown
Shine:  Glass Gloss
Hardness: 7
Specific weight: 2.65-2.66
Crystal system: Trigonal
Transparency: Transparent, translucent, opaque
Occurrence: Brazil, Canada, Germany

Macrokristallijne Quartz: The crystals are visible with the naked eye. This group consists of: Quartz & varieties of quartz: Amethyst, aventurine, rhinestone, Blue quartz, Citrine, Herkimer diamond, milk quartz, smoke quartz, pink quartz, rose quartz, rutile quartz, tiger eye, tourmaline quartz.

If in stock you will find below my collection of crude gemstones within this group. Are you looking for polished gemstones from the quartz group then look at QUARTZ GROUP