Iridescent Abalone Shell
The optical phenomenon of iridescence creates a beautiful pearly rainbow effect in an abalone shell.
Colorful Inclusions in Diamond
Inclusions can be found in a variety of different gemstones; they create a window that allows the viewer to picture a stone’s formation history.
Neptunite Inclusion in Benitoite
Raman analysis confirms that the yellow-orange to deep red inclusion in a faceted benitoite is indeed neptunite.
Bent Rutile in Rock Crystal Quartz
The authors recently examined a polished quartz disk with an unusual rutile (TiO2) inclusion.
Quarterly Crystal: Heavily Etched Blue Beryl Crystals Reportedly from Pakistan
In previous Micro-World columns, the Quarterly Crystal entry has showcased exceptional crystalline specimens masterfully crafted by geological forces.
Xenomorphic Olivine Inclusion in Diamond
A most unusually-shaped olivine inclusion in a faceted diamond takes a three-spoke form.
Yellow Fluid Inclusions in Transparent Sodalite
A rare transparent and near-colorless sodalite contains two-phase inclusions linking it to its ancient formation.
Garnet in Sapphire
A large orange garnet forms a rare and beautiful inclusion in a color-change sapphire.