Origin
Russia, Brazil, Tanzania, Madagascar, Zambia, Sri Lanka, Burma, India, Color: color change, from bluish green (daylight) to purple, red or brown (incandescent light), Hardness: 8, Refractive index: 1.74 1.77, Density: 3.68 3.80, Chemical composition: BeAl2O4, Crystal structure: orthorhombic, Origins: Russia, Brazil, Tanzania, Madagascar, Zambia, Sri Lanka, Burma
Burma, Sri Lanka, India, Madagascar, Kenya, Tanzania, Thailand, Cambodia, China, Australia, USA
Color
Green
Colorless, Yellow, Green, Violet, White, Colorless, Blue, Red, Green, Yellow, pink
Streak
Not Available
Not Available
For which Rashi?
Scorpio
Pisces, Taurus, Gemini, Libra, Pisces, Taurus, Gemini, Libra, Pisces, Taurus, Gemini, Libra
Element of Planets
Earth
Water
Energy
Projective, Receptive
Receptive
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Deities
Not Available
Apollo
Not to wear with
Not Available
Not Available
Powers
Love
Psychic Power, Prosperity
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
insoluble
Durability
Not Available
Not Available
Specific Gravity
3.69-3.81
3.95-4.03
Fracture
Not Available
Uneven, Uneven, Gems, Sixth Edition (2006)
Cleavage
1,1 ; 3,2.
None, but may exhibit parting
Chemical Composition
BeAl 2 O 4
Al 2 O 3
Luster
Vitreous
Vitreous, Adamantine, Vitreous, Adamantine
Pleochroism
Not Available
Strong
Transparency
Transparent, Transparent to nearly opaque
Transparent, Translucent, Transparent to opaque
Refractive Index
1.739-1.770
1.762-1.788
Optic Character
Biaxial/+
Not Available
Crystal System
Orthorhombic
Trigonal
Birefringence
0.007-0.010
0.008-0.009
Clarity
Transparent
Transparent
Neurological
Not Available
Not Available
Cardiovascular
Not Available
Not Available
Respiratory
Not Available
Not Available
Reproductive
Not Available
Not Available
Digestive
Not Available
Not Available
Psychology
Not Available
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available
Alexandrite Vs Sapphire Fracture
Fracture is an important parameter when you compare Alexandrite and Sapphire Physical Properties. It is necessary to understand the significance of these properties, before you compare Alexandrite 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. Sapphire fracture is Uneven, Uneven, Gems and Sixth Edition (2006).
Alexandrite Vs Sapphire Luster
A primary knowledge about Alexandrite 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. Alexandrite exhibits Vitreous luster. Sapphire, on other hand, exhibits Vitreous, Adamantine, Vitreous and Adamantine luster.
