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Galena Vs Howlite


Howlite Vs Galena


Astrology

Origin
Not Available   
Southern and central Africa   

Color
Grey, gray   
Blue, Colorless, White   

Streak
Grey, Black   
White   

For which Rashi?
Not Available   
Gemini, Virgo, Gemini, Virgo, Gemini, Virgo   

Planet
Not Available   
Moon   

Element of Planets
Not Available   
Earth   

How to Wear?
  
  

Finger
Not Available   
Not Available   

Ring Metal
Not Available   
Not Available   

Energy
Not Available   
Not Available   

Deities
Not Available   
Quan Yin   

Not to wear with
Not Available   
Not Available   

Powers
Not Available   
Not Available   

Birthstone
  
  

Planetary
Not Available   
Not Available   

Talisman
Not Available   
Not Available   

Physical Properties

Tenacity
Brittle   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
6.23   
2.45-2.58   

Fracture
Subconchoidal, Brittle, Metallic   
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal   

Cleavage
Cubic perfect on [001], parting on [111]   
None   

Mohs Hardness
2.5-2.75   
3-3.5   

Chemical Composition
PbS   
Ca 2B 5SiO 9(OH) 5Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties

Luster
Not Available   
Vitreous   

Pleochroism
Not Available   
NilArthur Thomas   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
Gemmological Tables (2004) More from other references   

Refractive Index
Not Available   
1.583-1.608   

Optic Character
Not Available   
Not Available   

Crystal System
cubic   
monoclinic   

Birefringence
Not Available   
0.019   

Clarity
Not Available   
Gemmological Tables (2004) More from other references   

Benefits

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   

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Galena Vs Howlite Fracture

Fracture is an important parameter when you compare Galena and Howlite Physical Properties. It is necessary to understand the significance of these properties, before you compare Galena 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 Galena is Brittle, Metallic and Subconchoidal. Howlite fracture is Brittle, Conchoidal, Gemstones (2009), Gemstones (2009), UnevenArthur Thomas and UnevenArthur Thomas.

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Galena Vs Howlite Luster

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

Grey Gemstones

Grey Gemstones


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