Facts about Biotite and Alexandrite
Origin
Not Available
  
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
  
Color
Brown, Yellow, White, Brown, Greenish, Yellow, White
  
Green
  
Streak
White, gray
  
Not Available
  
For which Rashi?
Not Available
  
Scorpio
  
Planet
Not Available
  
Venus
  
Element of Planets
Not Available
  
Earth
  
How to Wear?
  
  
Finger
Not Available
  
Not Available
  
Ring Metal
Not Available
  
Not Available
  
Energy
Not Available
  
Projective, Receptive
  
Deities
Not Available
  
Not Available
  
Not to wear with
Not Available
  
Not Available
  
Powers
Not Available
  
Love
  
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
2.7-3.3
  
3.69-3.81
  
Fracture
Uneven, Even, Yellow, White
  
Not Available
  
Cleavage
Perfect on the {001}
  
1,1 ; 3,2.
  
Mohs Hardness
2.5-3.0
  
8.5
  
Chemical Composition
K(Mg,Fe++)3[AlSi3O10(OH,F)2
  
BeAl 2 O 4
  
Luster
Vitreous, Pearly
  
Vitreous
  
Pleochroism
Strong
  
Not Available
  
Dispersion
Not Available
  
Not Available
  
Transparency
Not Available
  
Transparent, Transparent to nearly opaque
  
Refractive Index
1.565-1.625
  
1.739-1.770
  
Optic Character
Not Available
  
Biaxial/+
  
Crystal System
monoclinic
  
Orthorhombic
  
Birefringence
0.03-0.07
  
0.007-0.010
  
Clarity
Not Available
  
Transparent
  
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
  
Biotite Vs Alexandrite Specifications
While buying, there is a common bewilderment that most of the buyers face. As you compare Biotite Vs Alexandrite 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 Biotite and Alexandrite Astrology. Its highly necessary to have a basic knowledge of facts about Biotite and Alexandrite, before you finalize to buy one.
Biotite is known to regulate the influence of Not Available planet. Alexandrite, the unique gem is known to regulate the influence of Venus planet. Alexandrite, which is classic Green colored gem, possesses Projective and Receptive energy.