Two-phase inclusion in amethyst, Brazil
Dumortierite in rock crystal, Brazil, polarised light
Midge included in amber from the Baltic coast, polarised light
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Spinel crystal in dolomite marble, Burma
Inclusions of hematite in aquamarine, Tanzania
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