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Milarite and Astrophyllite Physical Properties


Astrophyllite and Milarite Physical Properties


Physical Properties

Tenacity
Not Available   
Not Available   

Solubility
Not Available   
Not Available   

Durability
Not Available   
Not Available   

Specific Gravity
2.52-2.60   
3.2-3.4   

Fracture
Uneven, Uneven, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Metallic   
Uneven, Brittle, Metallic   

Cleavage
{0001} Imperfect, {1120} Imperfect   
Perfect on [001] imperfect on [100]   

Mohs Hardness
5.5-6   
3   

Chemical Composition
KCa 2AlBe 2Si 12O 30 · 0.5H 2OMichael O’Donoghue , Gems, Sixth Edition (2006) More from other references   
(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)   

Optical Properties >>
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Milarite and Astrophyllite Chemical Formula

While comparing Milarite and Astrophyllite 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 Milarite and Astrophyllite chemical formula.

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Milarite and Astrophyllite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Milarite and Astrophyllite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Milarite and Astrophyllite Optical Properties during the identification of gemstone. Specific gravity of Milarite is 3.2-3.4 whereas that of Astrophyllite is 3.2-3.4.

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