ETYMOLOGY: It is uncertain, maybe it could mean "spark" in greek or "spike" in latin.

CRYSTAL SYSTEM: Cubic, octahedron, twins, dodecahedrons.

PRINCIPLE OF FORMATION: Primary or tertiary.

CLASS MINERAL: Oxides.

MINERAL ELEMENTS CHEMICAL FORMULA: MgAl2O4 magnesium aluminate.

HARDNESS: 8 on the Mohs scale.

FIELDS: Burma, Sri Lanka and Thailand, Cambodia, Brazil, Russia.

MINERALOGY: The minerals from the group spinel are a of oxides that form solid solution with each other, is formed in metamorphic and igneous rocks can also be frequently found in boulders of streams, where they have been preserved because their physical strength and their chemical properties. It exists in all colors; the most appreciated red hue is similar to ruby ​​coloring substances are: iron, chromium, vanadium and cobalt.

MYTHOLOGY: The spinel not recognized as independent mineral until 150 years ago, before the encompassed in rubies, some famous stones before rubies were considered are actually spinels such as "Black Prince's Ruby" from the English crown. The two largest spinels world (shot or octahedron) each weighing 520ct. They are in the British Museum in London.

PROPERTIES: It is a mineral that provides encouragement, confidence and provides the opportunity to enjoy with optimism, providing tranquility spinel symbolizes serenity.

CHAKRAS: Sacro.

ZODIAC SIGN: Aries, Taurus, Gemini.

USES: Collection, meditation, jewelry, watch movements manufacturing, abrasive powders and ceramics superelastic.