Astrophyllite and Almandine Garnet Physical Properties

Astrophyllite

Almandine Garnet

Add ⊕

1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

3.2-3.44.3

1 7.18

1.5 Fracture

Uneven, Brittle, Metallic

Not Available

1.6 Cleavage

Perfect on [001] imperfect on [100]

None.

1.7 Mohs Hardness

37.5-8.5

2 10

1.8 Chemical Composition

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

Fe₃Al₂Si₃O₁₂

Astrophyllite and Almandine Garnet Chemical Formula

While comparing Astrophyllite and Almandine Garnet 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 Almandine Garnet 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 Almandine Garnet- Fe₃Al₂Si₃O₁₂

Compare Green Gemstones

Astrophyllite Vs Black Opal

Astrophyllite Vs Blue John

Astrophyllite Vs Bloodstone Heliotrope

Astrophyllite and Almandine Garnet Specific Gravity

Another important criteria for qualitative analysis of gemstones is Astrophyllite and Almandine Garnet Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Astrophyllite and Almandine Garnet Optical Properties during the identification of gemstone. Specific gravity of Astrophyllite is 4.3 whereas that of Almandine Garnet is 4.3.