Partially etched diamond crystal
Partially etched diamond crystal
Agate from Reichweiler, Germany
Agate from Reichweiler, Germany
Agate from Anzi, Maroc
Agate from Anzi, Maroc
Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Inclusions of anatase crystal and rutile fibres in rock crystal from Brazil
Dumortierite in rock crystal, Brazil, polarised light
Dumortierite in rock crystal, Brazil, polarised light
Colour zoning in ruby from Mong-Shu, Burma
Colour zoning in ruby from Mong-Shu, Burma
Dendrites in agate
Dendrites in agate
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light
Inclusions of rock crystal and rutile needles in quartz, Brazil, polarised light