Quartz - Rock crystal: This colorless quartz is also known as "rock crystal

Quartz: Quartz is incredible The variety / range a family that includes many types of gems such as amethyst ranging in color from red to violet purple, citrine that goes from yellow to orange, which as its name emetine suggests combining the color of amethyst and that of citrine, rose quartz, which can range from transparent to translucent and is reminiscent of the powder pink, onyx to be presented below, the agates that show ornamental designs, the chrysoprase in color apple green, with superb retile quartz inclusions, drusy quartz surface covered with very small shiny crystals, etc ....

On a relatively more affordable, quartz often replaces more expensive gems such as diamonds. It has, however, a value as such.

Rock crystal

This colorless quartz is also known as "rock crystal". The best rock crystal has the clarity and the reflection of water. Jewelry, rock crystal is often engraved.

It is said that the colorless crystals of quartz provide the physical and mental health.

The quartz

The "smoky quartz" also called "smoky topaz" is brown transparent quartz. Of course, it is not a topaz.

The rutile quartz

Quartz, rutile is appreciated for its inclusions. It is as transparent as rock crystal, but it has, in its mass of golden needles very decorative. Some inclusions called "Venus's hair".

Quartz tourmaline

Quartz tourmaline is an unusual variety of quartz containing inclusions of black tourmaline crystals or dark green.

Quartz, tiger's eye

Quartz "tiger eye" contains brown iron which gives it a golden yellow color. Stones "tiger eye" are cabochon cut in the surface, a ray of light that evokes the eye of the tiger.

We find this type of quartz in South Africa, Australia, Myanmar, India and the United States.

Chalcedony:

The "chalcedony" is not a crystal consists of a single crystal, but of microcrystal.

There is a wide variety of chalcedony including cryptocrystalline quartz with patterns.

The agates are many

The bloodstone has red spots on a green background, the moss agate has a plant motifs. Jasper often looks like a painting landscaped. The black onyx is chalcedony quartz which owes its color to an ancient dyeing process still used today. The Carnelian, orange-colored sustained a translucency that makes it possible to make signet or seals. The chalcedony chrysoprase is one of a green apple transfused. On found mainly in Australia. It owes its color to nickel in it.