Astrophyllite and Eosphorite Physical Properties

Astrophyllite

Eosphorite

Add ⊕

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

3.2-3.4

Uneven

Perfect on [001] imperfect on [100]

(K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)

3.05-3.08

Subconchoidal, Uneven, Conchoidal

Poor on {100}

Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Astrophyllite and Eosphorite Chemical Formula

While comparing Astrophyllite and Eosphorite 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 Astrophyllite and Eosphorite chemical formula.

Chemical formula of Astrophyllite- (K,Na) 3(Fe2+ ,Mn) 7Ti 2Si 8O 24(O,OH) 7Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Eosphorite- Mn2+ Al(PO 4)(OH) 2H 2OMichael OâDonoghue , Gems, Sixth Edition (2006)

Compare Green Gemstones

Astrophyllite Vs Bowenite

Astrophyllite Vs Brazilianite

Astrophyllite Vs Chalcopyrite

Astrophyllite and Eosphorite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Astrophyllite and Eosphorite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Astrophyllite and Eosphorite Optical Properties during the identification of gemstone. Specific gravity of Astrophyllite is 3.05-3.08 whereas that of Eosphorite is 3.05-3.08.