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Types of Quartz

Amethyst
Amethyst

Amethyst is a well known mineral and gemstone. It is the purple variety of the mineral Quartz, and its most valuable and prized variety. Its name derives from the Greek "amethystos", which means "not drunken", as Amethyst in antiquity was thought to ward off drunkenness.

source: minerals.net
Ametrine
Ametrine

Ametrine is a variety of bicolor quartz that has zones of amethyst (purple) and citrine (golden yellow) in contact with one another in a single crystal. The words AMEthyst and ciTRINE were combined to yield the name "ametrine," which is widely used in the gemstone trade.

source: geology.com
image: flickr.com
Citrine
Citrine

Citrine is a transparent, yellow variety of Quartz, ranging in color from pale to golden yellow, honey or almost brown, and may contain rainbow or sparkle inclusions. The name comes from the French word citron, meaning lemon.

Milky Quartz
Milky Quartz

Milk quartz or milky quartz is the most common variety of crystalline quartz. The white color is caused by minute fluid inclusions of gas, liquid, or both, trapped during crystal formation, making it of little value for optical and quality gemstone applications.

Rock Crystal
Rock Crystal

Quartz is a mineral composed of silicon and oxygen atoms in a continuous framework of SiO4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2. Quartz is the second most abundant mineral in Earth's continental crust, behind feldspar.

Rose Quartz
Rose Quartz

Rose Quartz is the healer for these internal wounds, erasing the primal imprints and reprogramming the heart to accept the infinite source of love that comes from within the self. Only after learning to give love to the self is it possible to truly love others.

Rutilated Quartz
Rutilated Quartz

Rutilated quartz is quartz stone with rutile enclosures. Rutile is a mineral that is made up mostly of titanium dioxide, or TiO 2. As a mineral, it's very high on the refractive index and disperses more than almost any other mineral.

source: wisegeek.org
image: leaf.tv
Smoky Quartz
Smoky Quartz

Smoky quartz is a grey, translucent variety of quartz that ranges in clarity from almost complete transparency to an almost-opaque brownish-gray or black crystal. Like other quartz gems, it is a silicon dioxide crystal. The smoky colour results from free silicon formed from the silicon dioxide by natural irradiation.

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