ETYMOLOGY: It comes from the Greek word "stauros" cross and "lithos" meaning stone cross and the shape of this stone is cross.

CRYSTAL SYSTEM: Monoclinic.

PRINCIPLE OF FORMATION: Tertiary.

CLASS MINERAL: Silicates.

MINERAL ELEMENTS CHEMICAL FORMULA: (Fe 2+, Mg, Zn) 2Al9 (Si, Al) 4O22OH2.

HARDNESS: 7 7.5 on the Mohs scale.

FIELDS: Russia, Switzerland, USA, France, Brazil.

MINERALOGY: The staurolite is a silicate mineral is composed of iron, magnesium and zinc, and their colors vary because there is always the mass amount of these three components occurs in prismatic crystals sometimes equant, that usually form twin shaped Cross is a metamorphic mineral formed by regional metamorphism. The staurolite is formed by the merger of kyanite, mica and garnets.

READ MORE: usually form twin (symmetrical grouping of identical crystals) in a cross, according to two laws: Greek Cross: Arms form a 90 ° angle, Cross of San Andrés:arms form an angle of 60 °.

MYTHOLOGY: In the Swiss town of Pizzo Forno there crystals up to 50 mm in diameter, is also given in the form of transverse twins up to 200 mm in diameter in Keivy, Kola Peninsula (Russia). In Switzerland, they were used as amulets baptisms in England were believed amulets godsend.

PROPERTIES: The staurolite is a mineral that helps us to find our own identity, raises the sensitivity of all things, make sense or not, is known as a talisman of good luck as well as being a protective mineral, it helps to remove the accumulated stress.

CHAKRAS: Brow, solar plexus.

ZODIAC SIGN: Not determined.

USES: Jewellery Collection, meditation, petrographic interest (the branch of geology that deals with the study and research of rocks).