Facts about Grandidierite and Siderite
Origin
Madagascar
  
Brazil
  
Color
Green
  
Yellow, Brown, gray, Greenish
  
Streak
White
  
White
  
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
  
Brittle
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Not Available
  
Specific Gravity
2.85-3.00
  
3.83-3.89
  
Fracture
Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven
  
Uneven, Conchoidal, UnevenArthur Thomas, Brittle
  
Cleavage
Perfect
  
Perfect on {01 1 1}
  
Mohs Hardness
7.5
  
3.5-4.5
  
Chemical Composition
(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.
  
Fe2+ CO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
  
Luster
Vitreous, Pearly
  
Pearly
  
Pleochroism
visible
  
Not Available
  
Dispersion
Not Available
  
Not Available
  
Transparency
Gemmological Tables (2004) More from other references
  
Transparent, Translucent
  
Refractive Index
1.578-1.639
  
1.633-1.875
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Orthorhombic
  
Trigonal
  
Birefringence
0.037-0.039
  
0.242
  
Clarity
Gemmological Tables (2004) More from other references
  
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
  
Grandidierite Vs Siderite Specifications
While buying, there is a common bewilderment that most of the buyers face. As you compare Grandidierite Vs Siderite 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 Grandidierite and Siderite Astrology. Its highly necessary to have a basic knowledge of facts about Grandidierite and Siderite, before you finalize to buy one.
Grandidierite is known to regulate the influence of Not Available planet. Siderite, the unique gem is known to regulate the influence of Not Available planet.