Agate from Reichweiler, Germany
Fluid inclusions containing mica and quartz, in aquamarine from Pakistan
Bubbles and swirls in moldavite (natural glass)
Two-phase inclusion in amethyst, Brazil
Midge included in amber from the Baltic coast, polarised light
Inclusions of hematite in feldspar (sunstone), India
Inclusions of rutile (dark crystal and fine needles) and clusters of zircon grains in umbalite garnet, Tanzania
Dendrites in agate

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