Inclusions of fossil plant debris in opal from Wollo, Ethiopia

Colour zoning in ruby from Mong-Shu, Burma

Inclusion of apatite in ruby from Tanzania

Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers

Two-phase inclusions in tourmaline from Namibia

Structure in a healing fissure in topaz from Brazil

Fluid inclusions in quartz with bituminous daughter minerals, China

Midge included in amber from the Baltic coast, polarised light

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