Schorl and Mimetite Physical Properties

Schorl

Mimetite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.18-3.227.10

1 7.18

1.5 Fracture

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

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

{1011} Indistinct

[10 1 1] Imperfect

1.7 Mohs Hardness

Not Available3.5

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)

Pb 5(AsO 4) 3ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Schorl and Mimetite Chemical Formula

While comparing Schorl and Mimetite 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 Mimetite 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 Mimetite- Pb 5(AsO 4) 3ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Black Gemstones

Schorl Vs Triplite

Schorl Vs Xenotime

Schorl Vs Snowflake Obsidian

Schorl and Mimetite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Schorl and Mimetite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Schorl and Mimetite Optical Properties during the identification of gemstone. Specific gravity of Schorl is 7.10 whereas that of Mimetite is 7.10.