Home
Gemstones


Howlite and Ludlamite Physical Properties


Ludlamite and Howlite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.45-2.58   
3.1-3.2   

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

Cleavage
None   
Vitreous, pearly on cleavage   

Mohs Hardness
3-3.5   
3-4   

Chemical Composition
Ca 2B 5SiO 9(OH) 5Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references   

Optical Properties >>
<< Astrology

Howlite and Ludlamite Chemical Formula

While comparing Howlite and Ludlamite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Howlite and Ludlamite chemical formula.

Compare Gems for Gemini

Howlite and Ludlamite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Howlite and Ludlamite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Howlite and Ludlamite Optical Properties during the identification of gemstone. Specific gravity of Howlite is 3.1-3.2 whereas that of Ludlamite is 3.1-3.2.

Gemini Gems

Gemini Gems

» More Gemini Gems

Compare Gems for Gemini

» More Compare Gems for Gemini