Alexandrite Vs Pyrophyllite
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
Brazil
Color
Green
White, Blue, Yellow, Brown, Green, Brownish, Greenish, gray
Streak
Not Available
White
For which Rashi?
Scorpio
Not Available
Planet
Venus
Not Available
Element of Planets
Earth
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Projective, Receptive
Not Available
Deities
Not Available
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Not to wear with
Not Available
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Powers
Love
Not Available
Planetary
Not Available
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Talisman
Not Available
Not Available
Tenacity
Not Available
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Solubility
Not Available
Not Available
Durability
Not Available
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Specific Gravity
3.69-3.81
2.65-2.90
Fracture
Not Available
Gemstones (2009), Flexible Flexible fragments.
Cleavage
1,1 ; 3,2.
{001} Perfect
Mohs Hardness
8.5
Not Available
Chemical Composition
BeAl 2 O 4
Al 2Si 4O 10(OH) 2Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Pleochroism
Not Available
NilArthur Thomas
Dispersion
Not Available
Not Available
Transparency
Transparent, Transparent to nearly opaque
Translucent
Refractive Index
1.739-1.770
1.534-1.601
Optic Character
Biaxial/+
Not Available
Crystal System
Orthorhombic
Not Available
Birefringence
0.007-0.010
0.050
Clarity
Transparent
Translucent
Neurological
Not Available
Not Available
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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Alexandrite Vs Pyrophyllite Fracture
Fracture is an important parameter when you compare Alexandrite and Pyrophyllite Physical Properties. It is necessary to understand the significance of these properties, before you compare Alexandrite Vs Pyrophyllite 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. Pyrophyllite fracture is Flexible Flexible fragments. and Gemstones (2009).
Alexandrite Vs Pyrophyllite Luster
A primary knowledge about Alexandrite vs Pyrophyllite 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. Pyrophyllite, on other hand, exhibits Pearly luster.