Smoky Quartz and Ludlamite Physical Properties

Smoky Quartz

Ludlamite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.653.1-3.2

1 7.18

1.5 Fracture

Conchoidal, ConchoidalWalter Schumann, Gemstones of the world (2001)

UnevenArthur Thomas, Gemstones (2009), UnevenArthur Thomas, Gemstones (2009)

1.6 Cleavage

{0110} Indistinct

Vitreous, pearly on cleavage

1.7 Mohs Hardness

73-4

2 10

1.8 Chemical Composition

SiO₂

(Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Smoky Quartz and Ludlamite Chemical Formula

While comparing Smoky Quartz 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 Smoky Quartz and Ludlamite chemical formula.

Chemical formula of Smoky Quartz- SiO₂
Chemical formula of Ludlamite- (Fe2+ ,Mg,Mn2+ ) 3(PO 4) 2 · 4H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Smoky Quartz and Ludlamite Specific Gravity

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