ETYMOLOGY: Comes from the arabic into gar = "powder cave".

CRYSTAL SYSTEM: Monoclinic.

PRINCIPLE OF FORMATION: Secondary.

CLASS MINERAL: Sulphides.

CHEMICAL FORMULA, MINERAL ELEMENTS: AsS.

HARDNESS:  1.5 - 2 on the Mohs scale.

FIELDS: China, Romania, Macedonia, Switzerland, Peru, USA.

MINERALOGY: A naturally occurring arsenic sulfide, is found in veins of lead, silver and gold, associated oropimiente and other minerals of arsenic and stibnite. It also appears as a product of sublimation and volcanic and hydrothermal deposit, appears in short glasses, binoculars vertically striated. The structure of realgar contains groups as ring As4S4. Each AS is covalently bonded to another arsenic and two sulfur atoms.

MYTHOLOGY: A long exposure to light disintegrates in a red-yellowish powder. In the waters of the geysers Norris Geyser Basin (Yellowstone National Park, Wyoming USA) are important realgar crystals, he was used in medieval medicine and glassmaking.

PROPERTIES: It is said that the realgar encourages lazy people, strengthening physical energy, is a stone of intellectual clarity promoting rational analysis and constructive thinking is very useful to study, because it facilitates retention of information.

CHAKRAS: Spleen, Solar Plexus.