Pearl and Grandidierite Physical Properties

Pearl

Grandidierite

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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

2.85-3.00

1.5 Fracture

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

Brittle, UnevenArthur Thomas, Gemstones (2009), Brittle, Uneven

1.6 Cleavage

none

Perfect

1.7 Mohs Hardness

2.5-4.5

7.5

1.8 Chemical Composition

Not Available

(Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Pearl and Grandidierite Chemical Formula

While comparing Pearl and Grandidierite 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 Grandidierite chemical formula.

Chemical formula of Grandidierite- (Mg,Fe)Al 3(BO 4)(SiO 4)OUlrich Henn and Claudio C.

Compare Blue Gemstones

Pearl Vs Prase

Pearl Vs Precious Opal

Pearl Vs Prase Opal

Pearl and Grandidierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Pearl and Grandidierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Pearl and Grandidierite Optical Properties during the identification of gemstone. Specific gravity of Pearl is 2.85-3.00 whereas that of Grandidierite is 2.85-3.00.

Blue Gemstones

Pezzottaite

Phosphosiderite

Pleonaste

Powellite

Prase

Prase Opal