Chalcedony Vs Dravite
Origin
Zimbabwe
Southern and central Africa
Color
Violet, White, gray, Blue, Brown, Black
White, Colorless, Blue, Red, Green, Yellow, Violet, Black, Green, Red, Blue, White
For which Rashi?
Cancer, Sagittarius, Cancer, Sagittarius, Cancer, Sagittarius
Not Available
Planet
Moon
Not Available
Element of Planets
Water
Not Available
Energy
Receptive
Not Available
Finger
Not Available
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Ring Metal
Not Available
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Deities
Goddess Whope
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Not to wear with
Not Available
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Powers
Protection
Not Available
Planetary
Not Available
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Talisman
Not Available
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Tenacity
Not Available
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.55-2.70
3.03-3.18
Fracture
Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal, UnevenWalter Schumann
Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal, Brittle
Cleavage
Absent
{???} Indistinct
Mohs Hardness
6.5-7
7-7.5
Chemical Composition
SiO2
Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Pleochroism
AbsentWalter Schumann
Very strong: pale yellow colorless
Transparency
Translucent, Translucent to opaque
Transparent
Refractive Index
1.530-1.543
1.614-1.666
Optic Character
Not Available
Not Available
Crystal System
Trigonal
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m
Birefringence
0.003-0.009
0.014-0.032
Clarity
Translucent
Transparent
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
Not Available
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Reproductive
Not Available
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Digestive
Not Available
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Psychology
Not Available
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Healing
Not Available
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Qualities Associated
Not Available
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Chalcedony Vs Dravite Fracture
Fracture is an important parameter when you compare Chalcedony and Dravite Physical Properties. It is necessary to understand the significance of these properties, before you compare Chalcedony Vs Dravite 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 Chalcedony is Uneven, Splintery, Conchoidal, Uneven, Splintery, Conchoidal and UnevenWalter Schumann. Dravite fracture is Uneven, Uneven, Irregular, ConchoidalAnthony et al, Handbook of mineralogy (2001), Conchoidal and Brittle.
Chalcedony Vs Dravite Luster
A primary knowledge about Chalcedony vs Dravite 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. Chalcedony exhibits Vitreous luster. Dravite, on other hand, exhibits Vitreous luster.
