Schorl and White Opal Physical Properties

Schorl

White Opal

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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

3.18-3.221.98-2.50

1 7.18

1.5 Fracture

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

Conchoidal, Conchoidal, Gemstones of the world (2001)

1.6 Cleavage

{1011} Indistinct

Not Available

1.7 Mohs Hardness

Not Available5.5-6.5

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)

SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Schorl and White Opal Chemical Formula

While comparing Schorl and White Opal 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 White Opal 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 White Opal- SiO 2 · nH 2OWalter Schumann , Gemstones of the world (2001)

Compare Black Gemstones

Schorl Vs Triplite

Schorl Vs Xenotime

Schorl Vs Snowflake Obsidian

Schorl and White Opal Specific Gravity

Another important criteria for qualitative analysis of gemstones is Schorl and White Opal Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Schorl and White Opal Optical Properties during the identification of gemstone. Specific gravity of Schorl is 1.98-2.50 whereas that of White Opal is 1.98-2.50.