"Rutile crystals (titanium oxide) included in rock crystal (quartz) (40x). Technique: Brightfield, Fiber Optic Illumination."From the Nikon Small World 2013 photomicrography competition.
Inclusion in a cut gemstone
"Rutile crystals (titanium oxide) included in rock crystal (quartz) (40x). Technique: Brightfield, Fiber Optic Illumination."From the Nikon Small World 2013 photomicrography competition.