Alexandrite Vs Staurolite
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
Switzerland
Color
Green
Brown, Brownish, Yellow, Black, Reddish
Streak
Not Available
White, gray
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
Not Available
Not to wear with
Not Available
Not Available
Powers
Love
Not Available
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Not Available
Brittle
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
3.69-3.81
3.7-3.8
Fracture
Not Available
Subconchoidal, ConchoidalArthur Thomas, Gemstones (2009), Conchoidal, Brittle
Cleavage
1,1 ; 3,2.
Distinct on {010}
Chemical Composition
BeAl 2 O 4
(Fe,Mg,Zn) 2Al 9(Si,Al) 4O 22(OH) 2Ulrich Henn and Claudio C.
Pleochroism
Not Available
X = colorless; Y = pale yellow; Z = golden yellow
Dispersion
Not Available
Not Available
Transparency
Transparent, Transparent to nearly opaque
Blue Chart Gem Identification (2010) More from other references
Refractive Index
1.739-1.770
1.736-1.762
Optic Character
Biaxial/+
Not Available
Crystal System
Orthorhombic
monoclinic
Birefringence
0.007-0.010
0.009-0.015
Clarity
Transparent
Blue Chart Gem Identification (2010) More from other references
Neurological
Not Available
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Cardiovascular
Not Available
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Respiratory
Not Available
Not Available
Reproductive
Not Available
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Digestive
Not Available
Not Available
Psychology
Not Available
Not Available
Healing
Not Available
Not Available
Qualities Associated
Not Available
Not Available
Alexandrite Vs Staurolite Fracture
Fracture is an important parameter when you compare Alexandrite and Staurolite Physical Properties. It is necessary to understand the significance of these properties, before you compare Alexandrite Vs Staurolite 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. Staurolite fracture is Brittle, Conchoidal, ConchoidalArthur Thomas, Gemstones (2009) and Subconchoidal.
Alexandrite Vs Staurolite Luster
A primary knowledge about Alexandrite vs Staurolite 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. Staurolite, on other hand, exhibits Resinous luster.