Agate and Schorl Physical Properties

Agate

Schorl

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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

2.60-2.64

3.18-3.22

1.5 Fracture

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

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

1.6 Cleavage

Indiscernible

{1011} Indistinct

1.7 Mohs Hardness

6.5-7

Not Available

1.8 Chemical Composition

SiO₂

Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Agate and Schorl Chemical Formula

While comparing Agate and Schorl 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 Agate and Schorl chemical formula.

Chemical formula of Agate- SiO₂
Chemical formula of Schorl- Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

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Agate and Schorl Specific Gravity

Another important criteria for qualitative analysis of gemstones is Agate and Schorl Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Agate and Schorl Optical Properties during the identification of gemstone. Specific gravity of Agate is 3.18-3.22 whereas that of Schorl is 3.18-3.22.