Origin
Spain, Brazil, USA, Sri Lanka, Burma, Origins: Spain, Burma. Discovered in Andalusia (Spain)
Canada, USA, Tanzania, Norway
Color
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Red
Red, Yellow, Brown, pink, Green
Specific Gravity
3.05-3.21
2.62-2.65
Fracture
Uneven, Subconchoidal, Splintery
-
Cleavage
Good on {110}, poor on {100}
001
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Microcline: KAlSi3O8 Oligoclase: (Na,Ca)Al1-2Si3-2O8
Luster
Vitreous, Greasy
Vitreous
Pleochroism
strongly trichroic
Weak or absentWalter Schumann
Transparency
Transparent, Translucent
Transparent, Translucent, Transparent to translucent
Refractive Index
1.627-1.650
1.53-1.55
Crystal System
Orthorhombic
Triclinic
Birefringence
0.009-0.010
0.007-0.010
Clarity
Transparent
Transparent to translucent
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
Supports heart health
-
Respiratory
Excellent
Good
Psychology
Perception
Empowerment
Healing
Physical healing
Physical healing
Qualities Associated
Self-Realization
Joy
Andalusite Vs Sunstone Fracture
Fracture is an important parameter when you compare Andalusite and Sunstone Physical Properties. It is necessary to understand the significance of these properties, before you compare Andalusite Vs Sunstone 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.
Andalusite Vs Sunstone Luster
A primary knowledge about Andalusite vs Sunstone 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. Sunstone, on other hand, exhibits Vitreous luster.