Alunite Vs Howlite
Origin
Australia, Italy
Southern and central Africa
Color
Yellow, Red, Reddish, Brown, Colorless, White, Yellow, Red, Reddish, Brown, Colorless, White, gray, White, gray, Reddish, White, gray, Reddish, White, gray, Reddish
Blue, Colorless, White
For which Rashi?
Not Available
Gemini, Virgo, Gemini, Virgo, Gemini, Virgo
Planet
Not Available
Moon
Element of Planets
Not Available
Earth
Finger
Not Available
Not Available
Ring Metal
Not Available
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Energy
Not Available
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Deities
Not Available
Quan Yin
Not to wear with
Not Available
Not Available
Powers
Not Available
Not Available
Planetary
Not Available
Not Available
Talisman
Not Available
Not Available
Tenacity
Brittle
Not Available
Solubility
Soluble
Not Available
Durability
Not Available
Not Available
Specific Gravity
2.6-2.9
2.45-2.58
Fracture
Conchoidal, Uneven
UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009), Brittle, Conchoidal
Cleavage
On {0001}, perfect
None
Mohs Hardness
3.5-4
3-3.5
Chemical Composition
KAl3(SO4)2(OH)6
Ca 2B 5SiO 9(OH) 5Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Luster
Vitreous, Pearly
Vitreous
Pleochroism
Not Available
NilArthur Thomas
Dispersion
Not Available
Not Available
Transparency
Not Available
Gemmological Tables (2004) More from other references
Refractive Index
1.572
1.583-1.608
Optic Character
Not Available
Not Available
Crystal System
Trigonal
monoclinic
Birefringence
0.020
0.019
Clarity
Not Available
Gemmological Tables (2004) More from other references
Neurological
Not Available
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Cardiovascular
Not Available
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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
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Qualities Associated
Not Available
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Alunite Vs Howlite Fracture
Fracture is an important parameter when you compare Alunite and Howlite Physical Properties. It is necessary to understand the significance of these properties, before you compare Alunite 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 Alunite is Conchoidal and Uneven. Howlite fracture is Brittle, Conchoidal, Gemstones (2009), Gemstones (2009), UnevenArthur Thomas and UnevenArthur Thomas.
Alunite Vs Howlite Luster
A primary knowledge about Alunite 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. Alunite exhibits Pearly and Vitreous luster. Howlite, on other hand, exhibits Vitreous luster.