Schorl and Pyrargyrite Physical Properties

Schorl

Pyrargyrite

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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

3.18-3.225.85

1 7.18

1.5 Fracture

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

Conchoidal, Uneven, ConchoidalArthur Thomas, Brittle

1.6 Cleavage

{1011} Indistinct

Distinct on {10 1 1}, imperfect on {01 1 2}

1.7 Mohs Hardness

Not Available2.5-3

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)

Ag 3SbS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Schorl and Pyrargyrite Chemical Formula

While comparing Schorl and Pyrargyrite 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 Pyrargyrite 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 Pyrargyrite- Ag 3SbS 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Black Gemstones

Schorl Vs Triplite

Schorl Vs Snowflake Obsidian

Schorl Vs Xenotime

Schorl and Pyrargyrite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Schorl and Pyrargyrite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Schorl and Pyrargyrite Optical Properties during the identification of gemstone. Specific gravity of Schorl is 5.85 whereas that of Pyrargyrite is 5.85.