Schorl and Moldavite Physical Properties

Schorl

Moldavite

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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

3.18-3.222.32-2.38

1 7.18

1.5 Fracture

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

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

1.6 Cleavage

{1011} Indistinct

Not Available

1.7 Mohs Hardness

Not Available5.5

2 10

1.8 Chemical Composition

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

SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)

Schorl and Moldavite Chemical Formula

While comparing Schorl and Moldavite 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 Schorl and Moldavite chemical formula.

Chemical formula of Schorl- Na(Fe2+3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)
Chemical formula of Moldavite- SiO 2(+Al 2O 3)Walter Schumann , Gemstones of the world (2001)

Compare Black Gemstones

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Schorl Vs Triplite

Schorl Vs Snowflake Obsidian

Schorl and Moldavite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Schorl and Moldavite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Schorl and Moldavite Optical Properties during the identification of gemstone. Specific gravity of Schorl is 2.32-2.38 whereas that of Moldavite is 2.32-2.38.