Origin
Spain, Brazil, USA, Sri Lanka, Burma, Origins: Spain, Burma. Discovered in Andalusia (Spain)
Burma, Sri Lanka, India, Madagascar, Kenya, Tanzania, Thailand, Cambodia, China, Australia, USA
Color
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Red
Colorless, Yellow, Green, Violet, White, Blue, Red, pink
For which Rashi?
-
Pisces, Taurus, Gemini, Libra
Element of Planets
-
Water
Specific Gravity
3.05-3.21
3.95-4.03
Fracture
Uneven, Subconchoidal, Splintery
Uneven
Cleavage
Good on {110}, poor on {100}
None, but may exhibit parting
Chemical Composition
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Al 2 O 3
Luster
Vitreous, Greasy
Vitreous, Adamantine
Pleochroism
strongly trichroic
Strong
Transparency
Transparent, Translucent
Transparent, Translucent, Transparent to opaque
Refractive Index
1.627-1.650
1.762-1.788
Crystal System
Orthorhombic
Trigonal
Birefringence
0.009-0.010
0.008-0.009
Clarity
Transparent
Transparent
Neurological
Enhances mental clarity and focus
Enhances mental clarity and focus
Cardiovascular
Supports heart health
-
Respiratory
Excellent
Good
Psychology
Perception
Intuition
Healing
Physical healing
Emotional healing
Qualities Associated
Self-Realization
Wisdom
Andalusite Vs Sapphire Fracture
Fracture is an important parameter when you compare Andalusite and Sapphire Physical Properties. It is necessary to understand the significance of these properties, before you compare Andalusite Vs Sapphire 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. Sapphire fracture is Uneven.
Andalusite Vs Sapphire Luster
A primary knowledge about Andalusite vs Sapphire 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. Sapphire, on other hand, exhibits Vitreous and Adamantine luster.