Schorl and Axinite Physical Properties

Schorl

Axinite

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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

3.18-3.223.26-3.36

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

{1011} Indistinct

Good on {100}

1.7 Mohs Hardness

Not Available6.5-7

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)

(Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Schorl and Axinite Chemical Formula

While comparing Schorl and Axinite 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 Axinite 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 Axinite- (Ca,Fe,Mn,Mg) 3Al 2BSi 4O 15(OH)Walter Schumann , Gemstones of the world (2001) More from other references

Compare Black Gemstones

Schorl Vs Xenotime

Schorl Vs Triplite

Schorl Vs Snowflake Obsidian

Schorl and Axinite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Schorl and Axinite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Schorl and Axinite Optical Properties during the identification of gemstone. Specific gravity of Schorl is 3.26-3.36 whereas that of Axinite is 3.26-3.36.