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Omphacite Vs Howlite


Howlite Vs Omphacite


Astrology

Origin
Southern and central Africa  
Southern and central Africa  

Color
Green  
Blue, Colorless, White  

Streak
Greenish, White  
White  

For which Rashi?
-  
Gemini, Virgo  

Planet
-  
-  

Element of Planets
-  
Earth  

Energy
-  
-  

How to Wear?
  
  

Finger
-  
-  

Ring Metal
-  
-  

Deities
-  
Quan Yin  

Not to wear with
-  
-  

Powers
-  
-  

Birthstone
  
  

Planetary
-  
-  

Talisman
-  
-  

Physical Properties

Tenacity
-  
-  

Solubility
-  
-  

Durability
-  
-  

Specific Gravity
3.16-3.43  
2.45-2.58  

Fracture
Uneven, Conchoidal  
Conchoidal  

Cleavage
{110} Good, {110} Good  
None  

Mohs Hardness
5-6  
3-3.5  

Chemical Composition
(Ca,Na)(Mg,Fe,Al)Si 2O 6Anthony et al , Handbook of Mineralogy (2001)  
Ca 2B 5SiO 9(OH) 5Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references  

Optical Properties

Luster
Vitreous  
Vitreous  

Pleochroism
Weak: colorless -- very pale green -- very pale green  
-  

Dispersion
0.02  
99+
0.01  
99+

Transparency
TranslucentAnthony et al  
-  

Refractive Index
1.662-1.723  
1.583-1.608  

Optic Character
-  
-  

Crystal System
-  
monoclinic  

Birefringence
-9999  
0.019  

Clarity
TranslucentAnthony et al  
-  

Benefits

Physical
  
  

Neurological
Enhances mental clarity and focus  
Aids in mental clarity and focus  

Cardiovascular
-  
-  

Respiratory
Good  
Good  

Reproductive
-  
-  

Digestive
-  
-  

Psychology
Empowerment  
Calming  

Healing
Physical healing  
Emotional healing  

Qualities Associated
Transformation  
Calming  

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Omphacite Vs Howlite Fracture

Fracture is an important parameter when you compare Omphacite and Howlite Physical Properties. It is necessary to understand the significance of these properties, before you compare Omphacite Vs Howlite 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 Omphacite is Uneven and Conchoidal. Howlite fracture is Conchoidal.

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Omphacite Vs Howlite Luster

A primary knowledge about Omphacite vs Howlite 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. Omphacite exhibits Vitreous luster. Howlite, on other hand, exhibits Vitreous luster.

Green Gemstones

Green Gemstones


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