Schorl and Prase Physical Properties

Schorl

Prase

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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

3.18-3.222.64-2.69

1 7.18

1.5 Fracture

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

Gems, Sixth Edition (2006), Gems, Sixth Edition (2006)

1.6 Cleavage

{1011} Indistinct

Not Available

1.7 Mohs Hardness

Not Available7

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)

SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Schorl and Prase Chemical Formula

While comparing Schorl and Prase 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 Prase 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 Prase- SiO 2Michael OâDonoghue , Gems, Sixth Edition (2006)

Compare Black Gemstones

Schorl Vs Snowflake Obsidian

Schorl Vs Xenotime

Schorl Vs Triplite

Schorl and Prase Specific Gravity

Another important criteria for qualitative analysis of gemstones is Schorl and Prase Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Schorl and Prase Optical Properties during the identification of gemstone. Specific gravity of Schorl is 2.64-2.69 whereas that of Prase is 2.64-2.69.