Londonite Vs Rock Crystal
Origin
Madagascar
  
Sri Lanka
  
Color
White, Colorless, Yellow
  
White, Colorless, Blue, Red, Green, Yellow, Violet
  
Streak
White
  
Not Available
  
For which Rashi?
Not Available
  
Not Available
  
Planet
Not Available
  
Not Available
  
Element of Planets
Not Available
  
Not Available
  
How to Wear?
  
  
Finger
Not Available
  
Not Available
  
Ring Metal
Not Available
  
Not Available
  
Energy
Not Available
  
Not Available
  
Deities
Not Available
  
Not Available
  
Not to wear with
Not Available
  
Not Available
  
Powers
Not Available
  
Not Available
  
Birthstone
  
  
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
3.34
  
2.65
  
Fracture
ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal
  
ConchoidalWalter Schumann, Gemstones of the world (2001), ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
None
  
Not Available
  
Mohs Hardness
Not Available
  
7
  
Chemical Composition
(Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)
  
SiO 2Walter Schumann , Gemstones of the world (2001)
  
Luster
Vitreous
  
Not Available
  
Pleochroism
Not Available
  
AbsentWalter Schumann
  
Dispersion
Not Available
  
Transparency
Transparent
  
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
  
Refractive Index
Not Available
  
1.544-1.553
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Not Available
  
Not Available
  
Birefringence
Not Available
  
0.009
  
Clarity
Transparent
  
TransparentWalter Schumann
  
Physical
  
  
Neurological
Not Available
  
Not Available
  
Cardiovascular
Not Available
  
Not Available
  
Respiratory
Not Available
  
Not Available
  
Reproductive
Not Available
  
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Digestive
Not Available
  
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Psychology
Not Available
  
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Healing
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Qualities Associated
Not Available
  
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Londonite Vs Rock Crystal Fracture
Fracture is an important parameter when you compare Londonite and Rock Crystal Physical Properties. It is necessary to understand the significance of these properties, before you compare Londonite Vs Rock Crystal 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 Londonite is Brittle, Conchoidal, ConchoidalAnthony et al, ConchoidalAnthony et al, Handbook of mineralogy (2001) and Handbook of mineralogy (2001). Rock Crystal fracture is ConchoidalWalter Schumann, ConchoidalWalter Schumann, Gemstones of the world (2001) and Gemstones of the world (2001).
Londonite Vs Rock Crystal Luster
A primary knowledge about Londonite vs Rock Crystal 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. Londonite exhibits Vitreous luster.