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Opal (GregTech 4 Material)

Opal is a material added by GregTech 4 mod. It is unobtainable as of 4.08.08, but can be separated into its chemical components.

In GregTech 4 Opal comes in these forms:

GUI GT4 Material Tree.png
Opal - SiO2
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Crushed Opal Ore (GregTech 4)
Purified Opal Ore (GregTech 4)
Centrifuged Opal Ore (GregTech 4)
Impure Pile of Opal Dust (GregTech 4)
Purified Pile of Opal Dust (GregTech 4)
Opal Dust (GregTech 4)
Small Pile of Opal Dust (GregTech 4)
Tiny Pile of Opal Dust (GregTech 4)
Opal Plate (GregTech 4)
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Opal Lens (GregTech 4)
Opal (GregTech 4)
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