Two-phase inclusions in sapphire, Sri Lanka
Two-phase inclusions in sapphire, Sri Lanka
Agate from Reichweiler, Germany
Agate from Reichweiler, Germany
Fluid inclusions in quartz with bituminous daughter minerals, China
Fluid inclusions in quartz with bituminous daughter minerals, China
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Epigenetic inclusion (probanly melanterite) in quartz, Brazil, crossed polarisers
Inclusions of hematite in feldspar (sunstone), India
Inclusions of hematite in feldspar (sunstone), India
Colour zoning in ruby from Mong-Shu, Burma
Colour zoning in ruby from Mong-Shu, Burma
Inclusions of hematite in aquamarine, Tanzania
Inclusions of hematite in aquamarine, Tanzania
Fire opal, Mexico
Fire opal, Mexico
Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Inclusions of fossil plant debris in opal from Wollo, Ethiopia
Inclusions of fossil plant debris in opal from Wollo, Ethiopia