Howlite Vs Esperite
Origin
Southern and central Africa
USA
Color
Blue, Colorless, White
White
For which Rashi?
Gemini, Virgo, Gemini, Virgo, Gemini, Virgo
Not Available
Planet
Moon
Not Available
Element of Planets
Earth
Not Available
Finger
Not Available
Not Available
Ring Metal
Not Available
Not Available
Energy
Not Available
Not Available
Deities
Quan Yin
Not Available
Not to wear with
Not Available
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Powers
Not Available
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Planetary
Not Available
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Talisman
Not Available
Not Available
Tenacity
Not Available
Not Available
Solubility
Not Available
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.45-2.58
4.28-4.42
Fracture
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Metallic
Cleavage
None
Distinct on [010] and [100] poor on [101]
Mohs Hardness
3-3.5
5-5.5
Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
PbCa 3Zn 4(SiO 4) 4Anthony et al , Handbook of mineralogy (2001)
Pleochroism
NilArthur Thomas
colorless.
Dispersion
Not Available
Not Available
Transparency
Gemmological Tables (2004) More from other references
OpaqueAnthony et al, Opaque, Transparent
Refractive Index
1.583-1.608
1.760-1.774
Optic Character
Not Available
Not Available
Crystal System
monoclinic
monoclinic
Birefringence
0.019
0.012
Clarity
Gemmological Tables (2004) More from other references
OpaqueAnthony et al
Neurological
Not Available
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Cardiovascular
Not Available
Not Available
Respiratory
Not Available
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Reproductive
Not Available
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Digestive
Not Available
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Psychology
Not Available
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Healing
Not Available
Not Available
Qualities Associated
Not Available
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Howlite Vs Esperite Fracture
Fracture is an important parameter when you compare Howlite and Esperite Physical Properties. It is necessary to understand the significance of these properties, before you compare Howlite Vs Esperite 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 Brittle, Conchoidal, Gemstones (2009), Gemstones (2009), UnevenArthur Thomas and UnevenArthur Thomas. Esperite fracture is Brittle, Conchoidal, ConchoidalAnthony et al, Handbook of mineralogy (2001) and Metallic.
Howlite Vs Esperite Luster
A primary knowledge about Howlite vs Esperite 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. Esperite, on other hand, exhibits Vitreous luster.