Facts about Blue John and Howlite
Origin
Not Available
  
Southern and central Africa
  
Color
White, Colorless, Blue, Red, Green, Yellow, Violet
  
Blue, Colorless, White
  
Streak
Not Available
  
White
  
For which Rashi?
Not Available
  
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 Available
  
Quan Yin
  
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
3.00-3.25
  
2.45-2.58
  
Fracture
Not Available
  
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
  
Cleavage
Not Available
  
None
  
Mohs Hardness
Not Available
  
3-3.5
  
Chemical Composition
CaF 2Michael OâDonoghue , Gems, Sixth Edition (2006)
  
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Luster
Not Available
  
Vitreous
  
Pleochroism
Not Available
  
NilArthur Thomas
  
Dispersion
Not Available
  
Not Available
  
Transparency
Transparent
  
Gemmological Tables (2004) More from other references
  
Refractive Index
1.432-1.436
  
1.583-1.608
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Not Available
  
monoclinic
  
Birefringence
Not Available
  
0.019
  
Clarity
Transparent
  
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
  
Blue John Vs Howlite Specifications
While buying, there is a common bewilderment that most of the buyers face. As you compare Blue John Vs Howlite specifications, it helps you to decide which gemstone suits your zodiac sign. Besides, the extent to which a gemstone benefits you can be understood after comparing Blue John and Howlite Astrology. Its highly necessary to have a basic knowledge of facts about Blue John and Howlite, before you finalize to buy one.
Blue John is known to regulate the influence of Not Available planet. Howlite, the unique gem is known to regulate the influence of Moon planet.