Rare Blue Apatite Inclusion in Smoky Quartz
A very light blue hexagonal apatite inclusion is observed in natural smoky quartz.
YAG with Flux-Filled Fingerprints
The author recently examined a 3.58 ct yellowish green yttrium aluminum garnet, a manufactured product known in the trade as “YAG,” that contained numerous large flux-filled fractures.
Acicular Troughs Coincident with Green Stains on Rough Diamond Surface
The author acquired an alluvial rough diamond from Guyana showing unique surficial features that do not appear to have been documented elsewhere.
Complex Fluid Inclusion in Topaz
A blue topaz recently examined by the authors contained an interesting and complex fluid-filled negative crystal that revealed some remarkable behavior when cooled down.
Extraterrestrial-Like Inclusion in Mozambique Ruby
Microscopic examination reveals an inclusion resembling an extraterrestrial in a ruby from Mozambique.
Hematite Crystals in Diamond
Tiny hematite crystal inclusions identified along two fractures in natural diamond.
“Fishbone” Inclusion in a Burmese Peridot from Mogok
Examination of Burmese peridot with impressive size, color, and clarity reveals a fishbone-shaped inclusion.
Apatite Oiling: Before and After
Laboratory observation of fissures in an apatite cabochon before and after oiling.
Hyalite with Magnificent Internal Features
Pronounced cubic cavities, sometimes containing fluorite, are observed in a rare hyalite sample.
Quarterly Crystal: Hillocks on Beryl
Hexagonal growth hillocks are observed on gem-quality aquamarine from Pakistan.
Spessartine Garnet in Aquamarine
Aquamarine is faceted to display a red spessartine garnet crystal inclusion.
Vietnamese Skyline
Red spinel from Vietnam features iridescent needles resembling a futuristic skyline.