Ludlamite and Carnelian Physical Properties

Ludlamite

Carnelian

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.1-3.22.58-2.64

1 7.18

1.5 Fracture

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

Uneven, Splintery, Conchoidal, UnevenWalter Schumann, Gemstones of the world (2001)

1.6 Cleavage

Vitreous, pearly on cleavage

Absent

1.7 Mohs Hardness

3-46.5-7

2 10

1.8 Chemical Composition

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

SiO₂

Ludlamite and Carnelian Chemical Formula

While comparing Ludlamite and Carnelian 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 Ludlamite and Carnelian chemical formula.

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

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Ludlamite and Carnelian Specific Gravity

Another important criteria for qualitative analysis of gemstones is Ludlamite and Carnelian Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Ludlamite and Carnelian Optical Properties during the identification of gemstone. Specific gravity of Ludlamite is 2.58-2.64 whereas that of Carnelian is 2.58-2.64.