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Howlite
Howlite

Phosphosiderite
Phosphosiderite



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Howlite
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Phosphosiderite

Howlite and Phosphosiderite Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
2.45-2.58
Conchoidal
None
3-3.5
Ca 2B 5SiO 9(OH) 5Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references
 
-
-
-
2.74-2.76
Uneven
{010} Perfect, {001} Distinct
3.5-4
Fe3+ PO 4 · 2H 2OAnthony et al , Handbook of Mineralogy (2001)

Howlite and Phosphosiderite Chemical Formula

While comparing Howlite 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 Howlite and Phosphosiderite chemical formula.

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Howlite and Phosphosiderite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Howlite and Phosphosiderite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Howlite Vs Phosphosiderite during the identification of gemstone. Specific gravity of Howlite is whereas that of Phosphosiderite is .