Schorl and Gahnospinel Physical Properties

Schorl

Gahnospinel

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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

3.18-3.223.65-4.55

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

None, but may exhibit slight parting

1.7 Mohs Hardness

Not Available7.5-8

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)

(Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

Schorl and Gahnospinel Chemical Formula

While comparing Schorl and Gahnospinel 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 Gahnospinel 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 Gahnospinel- (Mg,Zn)Al 2O 4Gemdat.org , Management Team (2012)

Compare Black Gemstones

Schorl Vs Triplite

Schorl Vs Xenotime

Schorl Vs Snowflake Obsidian

Schorl and Gahnospinel Specific Gravity

Another important criteria for qualitative analysis of gemstones is Schorl and Gahnospinel Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Schorl and Gahnospinel Optical Properties during the identification of gemstone. Specific gravity of Schorl is 3.65-4.55 whereas that of Gahnospinel is 3.65-4.55.