Origin
Canada, Russia, Kenya, Russia, Brazil, Russia, Brazil, Russia, Brazil, Russia, Brazil, Russia, Brazil, Russia, Brazil, Russia, Norway, Brazil
  
Southern and central Africa
  
Color
Green, Greenish, Black, Green, Greenish, Black, Green, Greenish, Black, Reddish, Brown, Black, Green, Greenish, Black, Reddish, Brown, Black, Green, Greenish, Black, Reddish, Brown, Black
  
Blue, Colorless, White
  
Streak
Yellow, Yellowish-grey, gray
  
White
  
For which Rashi?
Pisces
  
Gemini, Virgo, Gemini, Virgo, Gemini, Virgo
  
Planet
Not Available
  
Moon
  
Element of Planets
Not Available
  
Earth
  
How to Wear?
  
  
Finger
Not Available
  
Not Available
  
Ring Metal
Not Available
  
Not Available
  
Energy
Not Available
  
Not Available
  
Deities
Not Noted
  
Quan Yin
  
Not to wear with
Not Available
  
Not Available
  
Powers
Healing
  
Not Available
  
Birthstone
  
  
Planetary
Not Available
  
Not Available
  
Talisman
Not Available
  
Not Available
  
Tenacity
Brittle
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
3.50-3.60
  
2.45-2.58
  
Fracture
Uneven, Brittle, Metallic, Brittle, Metallic, Brittle, Metallic
  
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
  
Cleavage
Good on {110}, (110) ^ (1 1 0) ≈87°; parting on {100}
  
None
  
Mohs Hardness
6
  
3-3.5
  
Chemical Composition
(Na,Fe,Ca)Si 2O 6Ulrich Henn and Claudio C.
  
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Luster
Vitreous, Resinous
  
Vitreous
  
Pleochroism
X = emerald green
  
NilArthur Thomas
  
Dispersion
Not Available
  
Not Available
  
Transparency
Gemmological Tables (2004) More from other references
  
Gemmological Tables (2004) More from other references
  
Refractive Index
1.720-1.778
  
1.583-1.608
  
Optic Character
Not Available
  
Not Available
  
Crystal System
monoclinic
  
monoclinic
  
Birefringence
0.037-0.061
  
0.019
  
Clarity
Gemmological Tables (2004) More from other references
  
Gemmological Tables (2004) More from other references
  
Physical
  
  
Neurological
Not Available
  
Not Available
  
Cardiovascular
Not Available
  
Not Available
  
Respiratory
Not Available
  
Not Available
  
Reproductive
Not Available
  
Not Available
  
Digestive
Not Available
  
Not Available
  
Psychology
Not Available
  
Not Available
  
Healing
Not Available
  
Not Available
  
Qualities Associated
Not Available
  
Not Available
  
Aegirine Vs Howlite Fracture
Fracture is an important parameter when you compare Aegirine and Howlite Physical Properties. It is necessary to understand the significance of these properties, before you compare Aegirine Vs Howlite 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 Aegirine is Brittle, Brittle, Brittle, Metallic, Metallic, Metallic and Uneven. Howlite fracture is Brittle, Conchoidal, Gemstones (2009), Gemstones (2009), UnevenArthur Thomas and UnevenArthur Thomas.
Aegirine Vs Howlite Luster
A primary knowledge about Aegirine vs Howlite 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. Aegirine exhibits Resinous and Vitreous luster. Howlite, on other hand, exhibits Vitreous luster.