ETIMOLOGY: It comes from the Greek word "kristallos" meaning ice and "Hard" in Slavic.

CRYSTAL SYSTEM: Trigonal.

PRINCIPLE OF FORMATION: Primary.

CLASS MINERAL: Silicates (tectosilicates)

CHEMICAL FORMULA MINERAL ELEMENTS: SiO2.

HARDNESS: 7 on the Mohs scale.

FIELDS: Brazil, Austria (Salzburg), Scandinavia, South Africa, USA (Virginia).

MINEROLOGY: Quartz aggregate coarse and cloudy blue color, blue color is due to inclusions of crocidolite needles (Crocidolite or blue asbestos is a fibrous variety of riebeckite that this is a group of mineral silicates). The variety of blue quartz is closely tied to rocks as ofita (it is a subvolcanic igneous rock. Crystallization under the surface of the earth, under low pressure and moderate temperature was over, causing cooling is fast, giving to slight rocks.)

MYTHOLOGY: Blue quartz is also known as sapphire quartz until recently it was thought that the blue quartz was due to the presence of another aluminosilicate, the Aerinite.

PROPERTIES: It is a mineral that calms the mind, alleviates fear, fosters creativity inspires hope, put on the throat chakra helps to connect with others.

CHAKRAS: Throat, eyebrows.

ZODIAC SIGN: Cancer, Scorpio, Pisces.

USES: Meditation, jewelery, collection.