Origin
Colombia, Zambia, Brazil, Madagascar, Southern and central Africa, Zimbabwe, Russia, India, Pakistan, Australia, USA, Not Available, Mexico, Spain
  
Afghanistan, China, Madagascar, Southern and central Africa, Pakistan, Sri Lanka, USA
  
Color
Green, Green, Blue, Yellow, Grey
  
Red, Reddish, orange, Brown
  
Streak
White
  
White
  
For which Rashi?
Taurus, Gemini, Aries, Taurus, Gemini, Aries, Taurus, Gemini, Aries
  
Not Available
  
Planet
Venus, Mercury
  
Not Available
  
Element of Planets
Earth
  
Not Available
  
How to Wear?
  
  
Finger
Not Available
  
Not Available
  
Ring Metal
Gold
  
Not Available
  
Energy
Receptive
  
Not Available
  
Deities
Diana, Artemis, Venus, Freyja
  
Not Available
  
Not to wear with
Red Coral, Natural Pearl, Moonstone, Ruby, Red Coral, Natural Pearl, Moonstone, Ruby
  
Not Available
  
Powers
Money, Protection, Love, Courage
  
Not Available
  
Birthstone
  
  
Planetary
Taurus
  
Not Available
  
Talisman
Gemini
  
Not Available
  
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Hard
  
Not Available
  
Specific Gravity
2.67-2.78
  
4.12-4.18
  
Fracture
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
ConchoidalArthur Thomas, Conchoidal, Brittle
  
Cleavage
Imperfect on the [0001]
  
{???} Distinct
  
Mohs Hardness
7.5-8
  
7-7.5
  
Chemical Composition
Be3Al2SiO6
  
Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)
  
Luster
Vitreous
  
Vitreous
  
Pleochroism
Strong dichroism: yellow green Lazzarelli
  
Not Available
  
Transparency
Transparent, Translucent, Transparent to translucent
  
Gemmological Tables (2004) More from other references
  
Refractive Index
1.565-1.602
  
1.789-1.820
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Hexagonal
  
Isometric
  
Birefringence
0.0040-0.0070
  
0.027
  
Clarity
Color grading system
  
TransparentUlrich Henn and Claudio C. Milisenda
  
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
  
Emerald Vs Spessartine Fracture
Fracture is an important parameter when you compare Emerald and Spessartine Physical Properties. It is necessary to understand the significance of these properties, before you compare Emerald Vs Spessartine 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 Emerald is ConchoidalWalter Schumann, Gemstones of the world (2001), Uneven and Uneven. Spessartine fracture is Brittle, Conchoidal and ConchoidalArthur Thomas.
Emerald Vs Spessartine Luster
A primary knowledge about Emerald vs Spessartine 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. Emerald exhibits Vitreous luster. Spessartine, on other hand, exhibits Vitreous luster.