Origin
Southern and central Africa
  
Colombia, Zambia, Brazil, Madagascar, Southern and central Africa, Zimbabwe, Russia, India, Pakistan, Australia, USA, Not Available, Mexico, Spain
  
Color
Black, Brownish, White, Brown
  
Green, Green, Blue, Yellow, Grey
  
Streak
Reddish, Black
  
White
  
For which Rashi?
Not Available
  
Taurus, Gemini, Aries, Taurus, Gemini, Aries, Taurus, Gemini, Aries
  
Planet
Not Available
  
Venus, Mercury
  
Element of Planets
Not Available
  
Earth
  
How to Wear?
  
  
Finger
Not Available
  
Not Available
  
Ring Metal
Not Available
  
Gold
  
Energy
Not Available
  
Receptive
  
Deities
Not Available
  
Diana, Artemis, Venus, Freyja
  
Not to wear with
Not Available
  
Red Coral, Natural Pearl, Moonstone, Ruby, Red Coral, Natural Pearl, Moonstone, Ruby
  
Powers
Not Available
  
Money, Protection, Love, Courage
  
Birthstone
  
  
Planetary
Not Available
  
Taurus
  
Talisman
Not Available
  
Gemini
  
Tenacity
Not Available
  
Not Available
  
Solubility
Not Available
  
Not Available
  
Durability
Not Available
  
Hard
  
Specific Gravity
4.76-5.03
  
2.67-2.78
  
Fracture
Conchoidal, Brittle
  
Uneven, Uneven, ConchoidalWalter Schumann, Gemstones of the world (2001)
  
Cleavage
None
  
Imperfect on the [0001]
  
Mohs Hardness
5.5-6.5
  
7.5-8
  
Chemical Composition
(Mn2+ ,Fe2+ ,Mg)(Fe3+ ,Mn3+ ) 2O 4Anthony et al , Handbook of mineralogy (2001)
  
Be3Al2SiO6
  
Luster
Not Available
  
Vitreous
  
Pleochroism
Not Available
  
Strong dichroism: yellow green Lazzarelli
  
Dispersion
Not Available
  
Transparency
Translucent
  
Transparent, Translucent, Transparent to translucent
  
Refractive Index
Not Available
  
1.565-1.602
  
Optic Character
Not Available
  
Not Available
  
Crystal System
Not Available
  
Hexagonal
  
Birefringence
Not Available
  
0.0040-0.0070
  
Clarity
Translucent
  
Color grading system
  
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
  
Jacobsite Vs Emerald Fracture
Fracture is an important parameter when you compare Jacobsite and Emerald Physical Properties. It is necessary to understand the significance of these properties, before you compare Jacobsite Vs Emerald 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 Jacobsite is Brittle and Conchoidal. Emerald fracture is ConchoidalWalter Schumann, Gemstones of the world (2001), Uneven and Uneven.
Jacobsite Vs Emerald Luster
A primary knowledge about Jacobsite vs Emerald 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, on other hand, exhibits Vitreous luster.