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Danburite
Danburite

Alexandrite
Alexandrite



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Danburite
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Alexandrite

Danburite Vs Alexandrite

1 Astrology
1.1 Origin
USA, Mexico, Brazil, Switzerland, Sri Lanka, Burma, Madagascar, Color: colorless, light yellow, light pink, Hardness: 7, Refractive index: 1.63 1.64, Density: 2.98 3.03, Chemical composition: Ca(B2Si2O8), Crystal structure: orthorhombic, Origins: USA, Mexico, Brazil, Germany, Switzerland, Sri Lanka, Burma, Madagascar, Japan. Colorless danburites are common, with light pink or yellowish stones being more rare and expensive. Only eye clean pieces are valuable.
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
1.2 Color
Yellow, Brown, Colorless, White, gray, Brownish, Yellow
Green
1.3 Streak
White
Not Available
1.4 For which Rashi?
Not Available
Scorpio
1.5 Planet
Not Available
Venus
1.6 Element of Planets
Not Available
Earth
1.7 How to Wear?
1.7.1 Finger
Not Available
Not Available
1.7.2 Ring Metal
Not Available
Not Available
1.8 Energy
Not Available
Projective, Receptive
1.9 Deities
Not Available
Not Available
1.10 Not to wear with
Not Available
Not Available
1.11 Powers
Not Available
Love
1.12 Birthstone
1.12.1 Planetary
Not Available
Not Available
1.12.2 Talisman
Not Available
Not Available
2 Physical Properties
2.1 Tenacity
Brittle
Not Available
2.2 Solubility
Not Available
Not Available
2.3 Durability
Not Available
Not Available
2.4 Specific Gravity
2.97-3.033.69-3.81
Amber
1 7.18
2.5 Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Conchoidal, Brittle
Not Available
2.6 Cleavage
{001} Poor
1,1 ; 3,2.
2.7 Mohs Hardness
78.5
Amber
2 10
2.8 Chemical Composition
CaB 2(SiO 4) 2Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
BeAl 2 O 4
3 Optical Properties
3.1 Luster
Vitreous, Greasy
Vitreous
3.2 Pleochroism
Weak: pale yellow yellow
Not Available
3.3 Dispersion
0.02NA
Fluorite
0.007 1
3.4 Transparency
Gemmological Tables (2004) More from other references
Transparent, Transparent to nearly opaque
3.5 Refractive Index
1.627-1.6391.739-1.770
Agate Opal
1 3.25
3.6 Optic Character
Biaxial/+
Biaxial/+
3.7 Crystal System
Orthorhombic
Orthorhombic
3.8 Birefringence
0.0060.007-0.010
Achroite
0 0.296
3.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Transparent
4 Benefits
4.1 Physical
4.1.1 Neurological
Not Available
Not Available
4.1.2 Cardiovascular
Not Available
Not Available
4.1.3 Respiratory
Not Available
Not Available
4.1.4 Reproductive
Not Available
Not Available
4.1.5 Digestive
Not Available
Not Available
4.2 Psychology
Not Available
Not Available
4.3 Healing
Not Available
Not Available
4.4 Qualities Associated
Not Available
Not Available

Danburite Vs Alexandrite Fracture

Fracture is an important parameter when you compare Danburite and Alexandrite Physical Properties. It is necessary to understand the significance of these properties, before you compare Danburite Vs Alexandrite 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 Danburite is Brittle, Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references, Uneven and Uneven.

Danburite Vs Alexandrite Luster

A primary knowledge about Danburite vs Alexandrite 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. Danburite exhibits Greasy and Vitreous luster. Alexandrite, on other hand, exhibits Vitreous luster.