Thaumasite and Chrome-Chalcedony Physical Properties

Thaumasite

Chrome-Chalcedony

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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

1.912.55-2.70

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

Indistinct

Not Available

1.7 Mohs Hardness

3.56.5-7

2 10

1.8 Chemical Composition

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

SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)

Thaumasite and Chrome-Chalcedony Chemical Formula

While comparing Thaumasite and Chrome-Chalcedony 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 Chrome-Chalcedony 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 Chrome-Chalcedony- SiO 2 (with trace Cr minerals) Gemdat.org , Management Team (2012)

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Thaumasite and Chrome-Chalcedony Specific Gravity

Another important criteria for qualitative analysis of gemstones is Thaumasite and Chrome-Chalcedony Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Thaumasite and Chrome-Chalcedony Optical Properties during the identification of gemstone. Specific gravity of Thaumasite is 2.55-2.70 whereas that of Chrome-Chalcedony is 2.55-2.70.