Beryl and Sellaite Physical Properties

Beryl

Sellaite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.60-2.90

3.14-3.16

1.5 Fracture

Uneven, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Conchoidal, Irregular, Uneven, Gems, Brittle

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

1.6 Cleavage

Imperfect on {0001}

Perfect on {010} and {110}

1.7 Mohs Hardness

7.5-8

5-5.5

1.8 Chemical Composition

Be₃Al₂Si₆O₁₈

MgF 2Ulrich Henn and Claudio C.

Beryl and Sellaite Chemical Formula

While comparing Beryl and Sellaite 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 Beryl and Sellaite chemical formula.

Chemical formula of Beryl- Be₃Al₂Si₆O₁₈
Chemical formula of Sellaite- MgF 2Ulrich Henn and Claudio C.

Compare Blue Gemstones

Beryl Vs Brucite

Beryl Vs Boulder Opal

Beryl Vs Boleite

Beryl and Sellaite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Beryl and Sellaite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Beryl and Sellaite Optical Properties during the identification of gemstone. Specific gravity of Beryl is 3.14-3.16 whereas that of Sellaite is 3.14-3.16.

Blue Gemstones

Black Opal

Bloodstone Heliotrope

Blue Beryl Maxixe

Blue John

Boleite

Boulder Opal