Thaumasite and Dumortierite Physical Properties

Thaumasite

Dumortierite

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1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.913.26-3.41

1 7.18

1.5 Fracture

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

Fibrous, ConchoidalWalter Schumann, Gemstones of the world (2001) More from other references

1.6 Cleavage

Indistinct

Distinct on {100}, poor on {110}; parting on {001}

1.7 Mohs Hardness

3.57-8.5

2 10

1.8 Chemical Composition

Ca 6Si 2(CO 3) 2(SO 4) 2(OH) 12 · 24H 2OUlrich Henn and Claudio C.

AlAl₆O₃BSi₃O₁₈

Thaumasite and Dumortierite Chemical Formula

While comparing Thaumasite and Dumortierite 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 Thaumasite and Dumortierite chemical formula.

Chemical formula of Thaumasite- Ca 6Si 2(CO 3) 2(SO 4) 2(OH) 12 · 24H 2OUlrich Henn and Claudio C.
Chemical formula of Dumortierite- AlAl₆O₃BSi₃O₁₈

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Thaumasite and Dumortierite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Thaumasite and Dumortierite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Thaumasite and Dumortierite Optical Properties during the identification of gemstone. Specific gravity of Thaumasite is 3.26-3.41 whereas that of Dumortierite is 3.26-3.41.