Facts about Vivianite and Andalusite
Origin
Southern and central Africa
Spain, Brazil, USA, Sri Lanka, Burma, Color: strongly pleochroic, reddish brown, pink / yellowish green, Hardness: 7 7.5, Refractive index: 1.63 1.65, Density: 3.13 3.21, Chemical composition: Al2SiO5, Crystal structure: orthorhombic, Lustre: vitreous, greasy, Origins: Spain, Brazil, USA, Sri Lanka, Burma. Discovered in Andalusia (Spain), the andalusite stone is relatively rare, with big crystals over 10 ct. especially rare. Due to its remarkable pleochroism effect, the stone is highly valued by collectors., brown
Color
Blue, Green, Colorless
Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Green, gray, Brown, Red
For which Rashi?
Not Available
All
Planet
Not Available
Venus
Element of Planets
Not Available
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Finger
Not Available
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Ring Metal
Not Available
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Energy
Not Available
Projective, Receptive
Deities
Not Available
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Not to wear with
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Powers
Not Available
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Planetary
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Talisman
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Tenacity
Not Available
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Solubility
Not Available
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Durability
Not Available
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Specific Gravity
2.64-2.70
3.05-3.21
Fracture
(e.g. graphite).
Uneven, Subconchoidal, Uneven, Subconchoidal, Splintery, UnevenArthur Thomas, Gemstones (2009)
Cleavage
{010} Perfect
Good on {110}, poor on {100}
Mohs Hardness
Not Available
7.5
Chemical Composition
Fe 3(PO 4) 2 8H 2OUlrich Henn and Claudio C.
Al 2SiO 5Michael OâDonoghue , Gems, Sixth edition (2006) More from other references
Luster
Vitreous, Pearly
Vitreous, Greasy
Pleochroism
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael OâDonoghue
strongly trichroic
Transparency
Transparent
Transparent, Translucent
Refractive Index
1.560-1.640
1.627-1.650
Optic Character
Not Available
Not Available
Crystal System
Not Available
Orthorhombic
Birefringence
0.054-0.075
0.009-0.010
Clarity
Transparent
Transparent
Neurological
Not Available
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Cardiovascular
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Respiratory
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Reproductive
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Digestive
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Psychology
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Healing
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Qualities Associated
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Vivianite Vs Andalusite Specifications
While buying, there is a common bewilderment that most of the buyers face. As you compare Vivianite Vs Andalusite 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 Vivianite and Andalusite Astrology. Its highly necessary to have a basic knowledge of facts about Vivianite and Andalusite, before you finalize to buy one.
Vivianite is known to regulate the influence of Not Available planet. Andalusite, the unique gem is known to regulate the influence of Venus planet. Andalusite, which is classic Brown, pink, Violet, Yellow, Green, White, gray, Colorless, Green, gray, Brown, Red colored gem, possesses Projective and Receptive energy.