Obsidian and Londonite Physical Properties

Obsidian

Londonite

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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

2.35-2.603.34

1 7.18

1.5 Fracture

Conchoidal, ConchoidalWalter Schumann, Conchoidal

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

1.6 Cleavage

Not Available

None

1.7 Mohs Hardness

5-5.5Not Available

2 10

1.8 Chemical Composition

Not Available

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

Obsidian and Londonite Chemical Formula

While comparing Obsidian 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 Obsidian and Londonite chemical formula.

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

Compare Gems for Sagittarius

Obsidian Vs Tanzanite

Obsidian Vs Topaz

Obsidian Vs Spinel

Obsidian and Londonite Specific Gravity

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