Magnesite and Labradorite Physical Properties

Magnesite

Labradorite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Effervesces in hot HCl

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.92-3.12

2.69-2.72

1.5 Fracture

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle

Uneven, Conchoidal, Gems, Sixth Edition (2006)

1.6 Cleavage

[10 1 1] perfect

Perfect on {001}, less perfect on {010}, intersecting at near 90°; distinct on {110}

1.7 Mohs Hardness

3.5-4.5

6-6.5

1.8 Chemical Composition

MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references

(Na,Ca)_1-2Si_3-2O₈

Magnesite and Labradorite Chemical Formula

While comparing Magnesite and Labradorite 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 Magnesite and Labradorite chemical formula.

Chemical formula of Magnesite- MgCO 3Michael OâDonoghue , Gems, Sixth Edition (2006) More from other references
Chemical formula of Labradorite- (Na,Ca)_1-2Si_3-2O₈

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Magnesite and Labradorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Magnesite and Labradorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Magnesite and Labradorite Optical Properties during the identification of gemstone. Specific gravity of Magnesite is 2.69-2.72 whereas that of Labradorite is 2.69-2.72.