OT027-Apatite crystal inclusion in a taafeite from Sri Lanka - Coll. Denis Gravier - Crossed polarizers, immersion
OT027-Apatite crystal inclusion in a ...
OT026-Apatite crystal inclusion in a taafeite from Sri Lanka - Coll. Denis Gravier - Darkfield, immersion
OT026-Apatite crystal inclusion in a ...
OT019-Yellow anatase crystals and rutile needles in quartz from Brazil
OT019-Yellow anatase crystals and rut...
OT018-Blue anatase crystals in a drilled quartz from Brazil
OT018-Blue anatase crystals in a dril...
OT017-Yellow anatase crystals and rutile needles in quartz from Brazil, crossed polarizing filters
OT017-Yellow anatase crystals and rut...
OT016-Nailhead spicule in a synthetic citrine quartz
OT016-Nailhead spicule in a synthetic...
OT015-Nailhead spicule in a synthetic citrine quartz
OT015-Nailhead spicule in a synthetic...
OT014-Iridescence in a rainbow andradite from Nara Japan, moiré pattern
OT014-Iridescence in a rainbow andrad...
OT013-Iridescence in a rainbow andradite from Nara Japan
OT013-Iridescence in a rainbow andrad...
OT012-Iridescence in a rainbow andradite from Nara Japan
OT012-Iridescence in a rainbow andrad...
OT011-Crystallites in obsidian in pollen-like shape, unknown location
OT011-Crystallites in obsidian in pol...
OT003-Dendritic inclusion of ilmenite and wafer-thin films of primary fluids in an asteriated black beryl from Brazil
OT003-Dendritic inclusion of ilmenite...
OT010-Elongated biotite crystal inclusion with interface light interference - Aquamarin, Madagascar
OT010-Elongated biotite crystal inclu...
OT009-Elongated biotite crystal inclusion with interface light interference - Aquamarin, Madagascar
OT009-Elongated biotite crystal inclu...
OT004-Unidentified blue inclusion in natural purple Jadeite - Burma
OT004-Unidentified blue inclusion in ...
OT008-Crystallized turquoise - Lynch Station, Virginie, USA
OT008-Crystallized turquoise - Lynch ...
OT001-Ferric and other compounds in Biotite, India
OT001-Ferric and other compounds in B...
OT002-Ring of boulangerite composed of joined wohrl of an acicular crystal - Quartz, Brazil
OT002-Ring of boulangerite composed o...
OT006-Tiny guest oriented inclusions with biotite crystal inclusions - Peridot (forsterite) from Myanmar
OT006-Tiny guest oriented inclusions ...
OT007-Biotite crystal inclusions - Peridot (forsterite) from Myanmar
OT007-Biotite crystal inclusions - Pe...
OT005-Biotite crystal inclusions - Peridot (forsterite) from Myanmar
OT005-Biotite crystal inclusions - Pe...