Alexandrite Vs Chalcedony
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
Zimbabwe
Color
Green
Violet, White, gray, Blue, Brown, Black
Streak
Not Available
White
For which Rashi?
Scorpio
Cancer, Sagittarius
Element of Planets
Earth
Water
Energy
Projective, Receptive
Receptive
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Deities
Not Available
Goddess Whope
Not to wear with
Not Available
Not Available
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
Soluble
Durability
Not Available
Not Available
Specific Gravity
3.69-3.81
2.55-2.70
Fracture
Not Available
Uneven, Splintery, Conchoidal, UnevenWalter Schumann
Cleavage
1,1 ; 3,2.
Absent
Chemical Composition
BeAl 2 O 4
SiO2
Pleochroism
Not Available
AbsentWalter Schumann
Dispersion
Not Available
None
Transparency
Transparent, Transparent to nearly opaque
Translucent, Translucent to opaque
Refractive Index
1.739-1.770
1.530-1.543
Optic Character
Biaxial/+
Not Available
Crystal System
Orthorhombic
Trigonal
Birefringence
0.007-0.010
0.003-0.009
Clarity
Transparent
Translucent
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 Chalcedony Fracture
Fracture is an important parameter when you compare Alexandrite and Chalcedony Physical Properties. It is necessary to understand the significance of these properties, before you compare Alexandrite Vs Chalcedony 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. Chalcedony fracture is Uneven, Splintery, Conchoidal and UnevenWalter Schumann.
Alexandrite Vs Chalcedony Luster
A primary knowledge about Alexandrite vs Chalcedony 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. Chalcedony, on other hand, exhibits Vitreous luster.
