Sylvite and Herderite Physical Properties

Sylvite

Herderite

Add ⊕

1 Physical Properties

1.1 Tenacity

Brittle

Not Available

1.2 Solubility

Soluble

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

1.9932.90-3.02

1 7.18

1.5 Fracture

Uneven, Brittle

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

1.6 Cleavage

Perfect on [100], [010], [001]

Indistinct on {110}

1.7 Mohs Hardness

2.55-5.5

2 10

1.8 Chemical Composition

Not Available

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

Sylvite and Herderite Chemical Formula

While comparing Sylvite and Herderite 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 Sylvite and Herderite chemical formula.

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

Compare Blue Gemstones

Sylvite Vs Ammolite

Sylvite Vs Alexandrite

Sylvite Vs Anatase

Sylvite and Herderite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Sylvite and Herderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Sylvite and Herderite Optical Properties during the identification of gemstone. Specific gravity of Sylvite is 2.90-3.02 whereas that of Herderite is 2.90-3.02.