Pearl and Londonite Physical Properties

Pearl

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

2.60-2.85

3.34

1.5 Fracture

Gemstones of the world (2001), UnevenWalter Schumann, Gemstones of the world (2001)

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

1.6 Cleavage

none

None

1.7 Mohs Hardness

2.5-4.5

Not Available

1.8 Chemical Composition

Not Available

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

Pearl and Londonite Chemical Formula

While comparing Pearl 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 Pearl 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 Blue Gemstones

Pearl Vs Precious Opal

Pearl Vs Prase

Pearl Vs Prase Opal

Pearl and Londonite Specific Gravity

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

Blue Gemstones

Pezzottaite

Phosphosiderite

Pleonaste

Powellite

Prase

Prase Opal