Schorl and Andradite Garnet Physical Properties

Schorl

Andradite Garnet

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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

3.18-3.223.8-3.9

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

{1011} Indistinct

None

1.7 Mohs Hardness

Not Available6.5-7.5

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)

Ca₃Fe³⁺₂Si₃O₁₂

Schorl and Andradite Garnet Chemical Formula

While comparing Schorl and Andradite Garnet 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 Andradite Garnet 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 Andradite Garnet- Ca₃Fe³⁺₂Si₃O₁₂

Compare Black Gemstones

Schorl Vs Triplite

Schorl Vs Xenotime

Schorl Vs Snowflake Obsidian

Schorl and Andradite Garnet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Schorl and Andradite Garnet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Schorl and Andradite Garnet Optical Properties during the identification of gemstone. Specific gravity of Schorl is 3.8-3.9 whereas that of Andradite Garnet is 3.8-3.9.