Schorl and Ametrine Physical Properties

Schorl

Ametrine

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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

3.18-3.222.65

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

{1011} Indistinct

Indiscernible

1.7 Mohs Hardness

Not Available7

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)

SiO₂

Schorl and Ametrine Chemical Formula

While comparing Schorl and Ametrine 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 Ametrine 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 Ametrine- SiO₂

Compare Black Gemstones

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Schorl Vs Xenotime

Schorl and Ametrine Specific Gravity

Another important criteria for qualitative analysis of gemstones is Schorl and Ametrine Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Schorl and Ametrine Optical Properties during the identification of gemstone. Specific gravity of Schorl is 2.65 whereas that of Ametrine is 2.65.