Rhodochrosite and Boracite Physical Properties

Rhodochrosite

Boracite

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1 Physical Properties

1.1 Tenacity

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

3.0-3.3

2.95-2.96

1.5 Fracture

Uneven, Conchoidal, Conchoidal to uneven, Brittle

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

On {10 1 1} perfect; parting on {10 1 2}

None

1.7 Mohs Hardness

3.5-4

7-7.5

1.8 Chemical Composition

MnCO₃

Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Rhodochrosite and Boracite Chemical Formula

While comparing Rhodochrosite and Boracite 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 Rhodochrosite and Boracite chemical formula.

Chemical formula of Rhodochrosite- MnCO₃
Chemical formula of Boracite- Mg 3B 7O 13ClMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Rhodochrosite and Boracite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Rhodochrosite and Boracite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Rhodochrosite and Boracite Optical Properties during the identification of gemstone. Specific gravity of Rhodochrosite is 2.95-2.96 whereas that of Boracite is 2.95-2.96.