Phosphosiderite and Legrandite Physical Properties

Phosphosiderite

Legrandite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

1.3 Durability

Not Available

1.4 Specific Gravity

2.74-2.763.98-4.04

1 7.18

1.5 Fracture

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

Conchoidal, UnevenArthur Thomas, Gemstones (2009), Brittle

1.6 Cleavage

{010} Perfect, {001} Distinct

Imperfect, poor one {100}

1.7 Mohs Hardness

3.5-44.5-5

2 10

1.8 Chemical Composition

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

Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

Phosphosiderite and Legrandite Chemical Formula

While comparing Phosphosiderite and Legrandite 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 Phosphosiderite and Legrandite chemical formula.

Chemical formula of Phosphosiderite- Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)
Chemical formula of Legrandite- Zn 2(AsO 4)(OH) · H 2OMichael OâDonoghue , Gems, Sixth Edition (2006) More from other references

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Phosphosiderite and Legrandite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Phosphosiderite and Legrandite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Phosphosiderite and Legrandite Optical Properties during the identification of gemstone. Specific gravity of Phosphosiderite is 3.98-4.04 whereas that of Legrandite is 3.98-4.04.