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Boulder Opal
Boulder Opal

Spessartine
Spessartine



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Boulder Opal
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Spessartine

Boulder Opal and Spessartine Physical Properties

Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
-
-
-
1.98-2.25
Conchoidal
None
5-6.5
SiO 2 + H 2OUlrich Henn and Claudio C.
 
-
-
-
4.12-4.18
Conchoidal
{???} Distinct
7-7.5
Mn 3Al 2(SiO 4) 3Arthur Thomas , Gemstones (2009)

Boulder Opal and Spessartine Chemical Formula

While comparing Boulder Opal and Spessartine 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 Boulder Opal and Spessartine chemical formula.

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Boulder Opal and Spessartine Specific Gravity

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