Herderite and Ettringite Physical Properties

Herderite

Ettringite

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

Partially soluble in water

1.3 Durability

Not Available

1.4 Specific Gravity

2.90-3.021.77

1 7.18

1.5 Fracture

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

Not Available

1.6 Cleavage

Indistinct on {110}

Perfect on {10 1 0}

1.7 Mohs Hardness

5-5.52-2.5

2 10

1.8 Chemical Composition

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

Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Herderite and Ettringite Chemical Formula

While comparing Herderite and Ettringite 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 Ettringite chemical formula.

Chemical formula of Herderite- CaBePO 4(F,OH)Ulrich Henn and Claudio C.
Chemical formula of Ettringite- Ca 6Al 2(SO 4) 3(OH) 12 26H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Compare Colorless Gems

Herderite Vs Kunzite

Herderite Vs Milarite

Herderite Vs Inderite

Herderite and Ettringite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Herderite and Ettringite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Herderite and Ettringite Optical Properties during the identification of gemstone. Specific gravity of Herderite is 1.77 whereas that of Ettringite is 1.77.