Herderite and Plumbogummite Physical Properties

Herderite

Plumbogummite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.024.014

1 7.18

1.5 Fracture

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

Uneven, Conchoidal

1.6 Cleavage

Indistinct on {110}

None

1.7 Mohs Hardness

5-5.54-5

2 10

1.8 Chemical Composition

CaBePO 4(F,OH)Ulrich Henn and Claudio C.

Not Available

Herderite and Plumbogummite Chemical Formula

While comparing Herderite and Plumbogummite 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 Herderite and Plumbogummite chemical formula.

Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.

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Herderite and Plumbogummite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Herderite and Plumbogummite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Herderite and Plumbogummite Optical Properties during the identification of gemstone. Specific gravity of Herderite is 4.014 whereas that of Plumbogummite is 4.014.