Origin
Southern and central Africa
Southern and central Africa, USA, Australia, Brazil, USA, Australia, Brazil, USA
Color
White, Colorless, Blue, Red, Green, Yellow, Violet, Black, Green, Red, Blue, White
Green
Streak
Colorless
Not Available
For which Rashi?
Not Available
Cancer, Taurus, Cancer, Taurus, Cancer, Taurus
Planet
Not Available
Venus
Element of Planets
Not Available
Earth
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
Receptive
Deities
Not Available
Vesta
Not to wear with
Not Available
Not Available
Powers
Not Available
Protection, Healing
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.03-3.18
2.58-2.64
Fracture
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Gems, Sixth Edition (2006)
Cleavage
{???} Indistinct
None
Mohs Hardness
7-7.5
6.5-7
Chemical Composition
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
SiO2 (with a high level of nickel impurities )
Luster
Vitreous
Vitreous, Vitreous, Waxy
Pleochroism
Very strong: pale yellow colorless
AbsentWalter Schumann
Transparency
Transparent
Translucent, Translucent, Opaque, Translucent to nearly opaque
Refractive Index
1.614-1.666
1.530-1.543
Optic Character
Not Available
Not Available
Crystal System
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Trigonal
Birefringence
0.014-0.032
0.004
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
Dravite Vs Chrysoprase Fracture
Fracture is an important parameter when you compare Dravite and Chrysoprase Physical Properties. It is necessary to understand the significance of these properties, before you compare Dravite Vs Chrysoprase 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 Dravite is Brittle, Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Irregular, Uneven and Uneven. Chrysoprase fracture is Gems and Sixth Edition (2006).
Dravite Vs Chrysoprase Luster
A primary knowledge about Dravite vs Chrysoprase 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. Dravite exhibits Vitreous luster. Chrysoprase, on other hand, exhibits Vitreous, Vitreous and Waxy luster.