Schorl and Crocoite Physical Properties

Schorl

Crocoite

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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

3.18-3.225.90-6.10

1 7.18

1.5 Fracture

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

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), (e.g. graphite).

1.6 Cleavage

{1011} Indistinct

{110} Distinct, {001} Indistinct, {100} Indistinct

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)

PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Schorl and Crocoite Chemical Formula

While comparing Schorl and Crocoite 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 Crocoite 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 Crocoite- PbCrO 4Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Compare Black Gemstones

Schorl Vs Snowflake Obsidian

Schorl Vs Xenotime

Schorl Vs Triplite

Schorl and Crocoite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Schorl and Crocoite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Schorl and Crocoite Optical Properties during the identification of gemstone. Specific gravity of Schorl is 5.90-6.10 whereas that of Crocoite is 5.90-6.10.