Gibbsite and Phosphosiderite Physical Properties

Gibbsite

Phosphosiderite

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1 Physical Properties

1.1 Tenacity

Not Available

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.352.74-2.76

1 7.18

1.5 Fracture

Fibrous, Difficult, Fibrous

UnevenAnthony et al, Handbook of mineralogy (2001), UnevenAnthony et al, Handbook of mineralogy (2001), Uneven

1.6 Cleavage

{001} Perfect

{010} Perfect, {001} Distinct

1.7 Mohs Hardness

2.5-33.5-4

2 10

1.8 Chemical Composition

Al(OH)3

Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)

Gibbsite and Phosphosiderite Chemical Formula

While comparing Gibbsite and Phosphosiderite 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 Gibbsite and Phosphosiderite chemical formula.

Chemical formula of Gibbsite- Al(OH)3
Chemical formula of Phosphosiderite- Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)

Compare Grey Gemstones

Gibbsite Vs Pallasite

Gibbsite Vs Vanadinite

Gibbsite Vs Galena

Gibbsite and Phosphosiderite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Gibbsite and Phosphosiderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Gibbsite and Phosphosiderite Optical Properties during the identification of gemstone. Specific gravity of Gibbsite is 2.74-2.76 whereas that of Phosphosiderite is 2.74-2.76.