Dravite and Snowflake Obsidian Physical Properties

Dravite

Snowflake Obsidian

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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

3.03-3.182.33-2.50

1 7.18

1.5 Fracture

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

ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009)

1.6 Cleavage

{???} Indistinct

Not Available

1.7 Mohs Hardness

7-7.55-5.5

2 10

1.8 Chemical Composition

Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

Not Available

Dravite and Snowflake Obsidian Chemical Formula

While comparing Dravite and Snowflake Obsidian 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 Dravite and Snowflake Obsidian chemical formula.

Chemical formula of Dravite- Na(Mg 3)Al 6(Si 6O 18)(BO 3) 3(OH) 3(OH)Gemdat.org , Management Team (2012)

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Dravite and Snowflake Obsidian Specific Gravity

Another important criteria for qualitative analysis of gemstones is Dravite and Snowflake Obsidian Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Dravite and Snowflake Obsidian Optical Properties during the identification of gemstone. Specific gravity of Dravite is 2.33-2.50 whereas that of Snowflake Obsidian is 2.33-2.50.