Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
Inclusions of hematite in feldspar (sunstone), India
Agate from Reichweiler, Germany
Dendrites in agate
Inclusions of gilalite aggregates in rock crystal from Brazil
Partially etched diamond crystal
Spinel crystal in dolomite marble, Burma
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