Partially etched diamond crystal
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, parallel polarisers
Colour zoning in ruby from Mong-Shu, Burma
Inclusions of gilalite aggregates in rock crystal from Brazil
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Fire opal, Mexico
Two-Phase inclusions and rutile needles in rock crystal from Brazil
Inclusions of hematite in feldspar (sunstone), India

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