Home
Gemstones


Howlite Vs Gedrite


Gedrite Vs Howlite


Astrology

Origin
Southern and central Africa  
Southern and central Africa  

Color
Blue, Colorless, White  
Brown, Green, gray, White  

Streak
White  
gray, 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
2.45-2.58  
3.15-3.259  

Fracture
Conchoidal  
-  

Cleavage
None  
Gedrite   Magnesiogedrite , Comments: Dark gray cleavage fragment of magnesiogedrite (gedrite). , Location: Bamble, Telemark, Norway. , Scale: See Image.  

Mohs Hardness
3-3.5  
5.5-6  

Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references  
(Mg,Fe2+ ) 2[(Mg,Fe2+ ) 3Al 2](Si 6Al 2)O 22(OH) 2Anthony et al , Handbook of mineralogy (2001)  

Optical Properties

Luster
Vitreous  
Vitreous  

Pleochroism
-  
Weak to moderate  

Dispersion
0.01  
99+
0.02  
99+

Transparency
-  
Transparent  

Refractive Index
1.583-1.608  
1.625-1.718  

Optic Character
-  
-  

Crystal System
monoclinic  
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma  

Birefringence
0.019  
-9999  

Clarity
-  
Transparent  

Benefits

Physical
  
  

Neurological
Aids in mental clarity and focus  
-  

Cardiovascular
-  
-  

Respiratory
Good  
-  

Reproductive
-  
-  

Digestive
-  
-  

Psychology
Calming  
Focus  

Healing
Emotional healing  
-  

Qualities Associated
Calming  
Protection  

Astrology >>
<< All

Howlite Vs Gedrite Fracture

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

Compare Gems for Gemini

Howlite Vs Gedrite Luster

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

Gems for Gemini

Gems for Gemini

» More Gems for Gemini

Compare Gems for Gemini

» More Compare Gems for Gemini