APPLICATIONS: | Mineral specimens. |
ASSOCIATED MINERALS: | Biotite, hornblende, quartz and feldspars. |
ASTROLOGICAL SIGN: | Leo. |
CHEMICAL STRUCTURE: | Na(70-50%) Ca(30-50%) (Al, Si)AlSi2 O8, Sodium Calcium Aluminum Silicate. |
CLASS: | Silicates. |
CLEAVAGE: | Perfect in one and good in another direction forming nearly right angled prisms. |
COLOR: | White or gray. |
CRYSTAL HABITS: | Blocky, or tabular crystals. Crystals have a nearly rectangular or square cross-section with slightly slanted dome and pinacoid terminations. Twinning is almost universal in all plagioclases. Crystals can be twinned according to the Albite, Carlsbad, Manebach and Baveno laws. |
CRYSTAL SYSTEM: | Triclinic, bar 1. |
FIELD INDICATORS: | Occurrence, twinning striations, density and index of refraction. |
FRACTURE: | Conchoidal. |
GENERAL INFORMATION: | Index of refraction is 1.545-1.562. Lamellar twinning may cause a grooved effect on crystal and cleavage surfaces that appear as striations. |
GEOGRAPHY: | Greenland, Andes Mountains and Norway. |
GROUP: | Feldspars. |
HARDNESS: | 6 - 6.5. |
LUSTER: | Vitreous to dull if weathered. |
METAPHYSICAL: | Excellent for use as ESP. Discourages chaotic, disruptive and disorganized growth. It's energy stabilizes and produces order within emotional, mental, physical and spiritual systems. |
PHYSICAL: | Used for the treatment of high cholesterol. Helps to find and transmit energies to the disorders locality and relinquish the disease. |
TRANSPARENCY: | Translucent to transparent. |
SPECIFIC GRAVITY: | 2.68-2.71. |
STREAK: | White. |
SUBCLASS: | Tectosilicates. |
VIBRATES: | To the number 8. |
