Piemontite and Fluorite Physical Properties

Piemontite

Fluorite

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Physical Properties

Tenacity

Brittle

Solubility

slightly water soluble and in hot hydrochloric acid

Durability

Specific Gravity

-99993.00-3.25

1 7.18

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Fracture

Uneven, Splintery

Subconchoidal, Uneven, ConchoidalWalter Schumann

Cleavage

[001] good, [100] distinct

Octahedral, perfect on {111}, parting on {011}

Mohs Hardness

6-6.54

2 10

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Chemical Composition

Ca2Al3(SiO4)(Si2O7)O(OH)

CaF₂

Piemontite and Fluorite Chemical Formula

While comparing Piemontite and Fluorite 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 Piemontite and Fluorite chemical formula.

Chemical formula of Piemontite- Ca2Al3(SiO4)(Si2O7)O(OH)
Chemical formula of Fluorite- CaF₂

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Piemontite and Fluorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Piemontite and Fluorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Piemontite and Fluorite Optical Properties during the identification of gemstone. Specific gravity of Piemontite is 3.00-3.25 whereas that of Fluorite is 3.00-3.25.