Sunstone and Londonite Physical Properties

Sunstone

Londonite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.4 Durability

Not Available

1.6 Specific Gravity

2.62-2.653.34

1 7.18

1.16 Fracture

Gemstones of the world (2001)

ConchoidalAnthony et al, Handbook of mineralogy (2001), ConchoidalAnthony et al, Handbook of mineralogy (2001), Brittle, Conchoidal

1.17 Cleavage

001

None

1.18 Mohs Hardness

6Not Available

2 10

1.19 Chemical Composition

Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈

(Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)

Sunstone and Londonite Chemical Formula

While comparing Sunstone and Londonite 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 Sunstone and Londonite chemical formula.

Chemical formula of Sunstone- Microcline: KAlSi₃O₈ Oligoclase: (Na,Ca)Al_1-2Si_3-2O₈
Chemical formula of Londonite- (Cs,K,Rb)Al 4Be 4(B,Be) 12O 28Anthony et al , Handbook of mineralogy (2001)

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Sunstone and Londonite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sunstone and Londonite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sunstone and Londonite Optical Properties during the identification of gemstone. Specific gravity of Sunstone is 3.34 whereas that of Londonite is 3.34.