Origin
Spain, Brazil, USA, Sri Lanka, Burma, Origins: Spain, Burma. Discovered in Andalusia (Spain)
Brazil, Southern and central Africa
Color
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Red
Blue, Green, Black
For which Rashi?
-
Gemini, Sagittarius
Specific Gravity
3.05-3.21
3.04-3.17
Fracture
Uneven, Subconchoidal, Splintery
Uneven
Cleavage
Good on {110}, poor on {100}
{001} Indistinct, {???} Indistinct
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
(Mg,Fe)Al 2(PO 4) 2(OH) 2Arthur Thomas , Gemstones (2009) More from other references
Luster
Vitreous, Greasy
-
Pleochroism
strongly trichroic
Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
Transparency
Transparent, Translucent
Transparent, Translucent
Refractive Index
1.627-1.650
1.604-1.646
Crystal System
Orthorhombic
monoclinic
Birefringence
0.009-0.010
0.031-0.036
Clarity
Transparent
Transparent
Neurological
Enhances mental clarity and focus
Balances digestive system and reduces bloating
Cardiovascular
Supports heart health
-
Respiratory
Excellent
Excellent
Digestive
-
Supports digestive health
Psychology
Perception
Clarity
Healing
Physical healing
Emotional healing
Qualities Associated
Self-Realization
Psychic Abilities
Andalusite Vs Lazulite Fracture
Fracture is an important parameter when you compare Andalusite and Lazulite Physical Properties. It is necessary to understand the significance of these properties, before you compare Andalusite Vs Lazulite fracture. Whenever a gemstone chip breaks, it leaves a characteristic line along its breakage. Such lines are known as fracture and are used to identify the gemstones in their initial stages of production when they are in the form of rough minerals. Fracture is usually described with the terms “fibrous” and “splintery” to denote a fracture that usually leaves elongated and sharp edges. Fracture observed in Andalusite is Uneven, Subconchoidal and Splintery. Lazulite fracture is Uneven.
Andalusite Vs Lazulite Luster
A primary knowledge about Andalusite vs Lazulite luster is useful in apparent identifications of these gemstones. Luster is the measure of light that gets reflected when incident on a finished cut gemstone. There are two major types of lusters: Silky and Adamantine. Since luster varies between two crystals of even the same gemstone, luster is limited to basic identification criteria. Andalusite exhibits Vitreous and Greasy luster.