Macro Crystalline Quartz

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


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

Quartz is divided into two groups:

Macro crystalline quartz: The crystals are visible to the naked eye. This Group includes: Quartz & Varieties of Quartz: Amethyst, Aventurine, Rock Crystal, Blue Quartz, Citrine, Herkimer Diamond, Milk Quartz, Smoky Quartz, Pink Quartz, Rose Quartz, Rutile Quartz, Tiger Eye, Tourmaline Quartz.

Microcrystalline / Cryptocrystalline quartz: The crystals are only visible with the microscope. This group includes: Chalcedony and varieties of Chalcedony: Agate, Blue Lace Agate, Blue Storm Agate, Botswana Agate, Carnelian, Chalcedony, Chrysoprase, Heliotrope, Jasper, Mookaite, Pietersite, Red Agate, Turitella, Petrified Wood

 within Convergence & Inclusions:

Other Gemstones belonging to the Quartz Group can be found among within Convergence & Inclusions: Actinolite quartz, Amethyst quartz, Ametrien, Enhydro quartz, Rutile quartz, Tiger iron, Tourmaline quartz

If in stock you will find below my collection of rough Gemstones within this group. Are you looking for cut Gemstones from the Quartz Group, then check out KWARTSGROUP