Schorl and Chrome Tourmaline Physical Properties

Schorl

Chrome Tourmaline

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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

3.18-3.222.85-3.35

1 7.18

1.5 Fracture

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

ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

{1011} Indistinct

3,2

1.7 Mohs Hardness

Not Available7-7.5

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)

Tourmaline is a series of several different minerals with unique chemical formulas.

Schorl and Chrome Tourmaline Chemical Formula

While comparing Schorl and Chrome Tourmaline 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 Chrome Tourmaline 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 Chrome Tourmaline- Tourmaline is a series of several different minerals with unique chemical formulas.

Compare Black Gemstones

Schorl Vs Snowflake Obsidian

Schorl Vs Xenotime

Schorl Vs Triplite

Schorl and Chrome Tourmaline Specific Gravity

Another important criteria for qualitative analysis of gemstones is Schorl and Chrome Tourmaline Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Schorl and Chrome Tourmaline Optical Properties during the identification of gemstone. Specific gravity of Schorl is 2.85-3.35 whereas that of Chrome Tourmaline is 2.85-3.35.