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Neptunite
Neptunite
☒

Willemite
Willemite
☒



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Neptunite
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Physical Properties

Tenacity

Solubility

Durability

Specific Gravity

Fracture

Cleavage

Mohs Hardness

Chemical Composition

 
Brittle
-
-
3.19-3.23
Conchoidal
{110} good
5-6
KNa 2Li(Fe2+ ,Mn2+ ) 2Ti 2Si 8O 24Michael O’Donoghue , Gems, Sixth Edition (2006)
 
-
-
-
3.89-4.18
Conchoidal, Uneven
{0001}, {11 2 0} imperfect
5.5
Zn 2SiO 4Michael O’Donoghue , Gems, Sixth Edition (2006) More from other references

Compare Red Gemstones

Red Gemstones

Rutile
Rutile
Sarcopside
Sarcopside
Schorlomite
Schorlomite
Willemite
Pyrope Spessartine
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Willemite
Pyroxmangite
Willemite Vs Pyroxmangite
Willemite
Realgar
Willemite Vs Realgar

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