Quarterly Crystal: Fluorite in Quartz from China
A large transparent colorless quartz crystal from the Yaogangxian mine plays host to numerous fluorite inclusions.
Lepidolite in Copper-Bearing Tourmaline
A prismatic colorless lepidolite crystal is observed in a copper-bearing tourmaline.
Evil Eye in a Flux-Healed Mong Hsu Ruby
The mirror reflection of a flux-healed fissure from a step pavilion facet in a Mong Hsu ruby creates an interesting inclusion scene.
Devitrified Glass “Pom-Poms” in Ruby
Devitrified glass inclusions resembling pom-poms or sea urchins are observed in a clarity-enhanced ruby.
Spiral Patterns on a Non-Nacreous Pearl
A 6.79 ct orange pearl displays a fascinating spiral pattern.
Dendritic Patterns in Emerald
A partially filled fissure in an emerald exhibits patterns resembling natural foliage.
Rose-Shaped Cloud Inclusion in Diamond
A cluster of cloud inclusions in diamond forms a petal-like structure resembling a rose.
“Hummingbird” in Orangy Yellow Diamond
An omphacite inclusion surrounded by fractures in an orangy yellow diamond takes the shape of a hummingbird.
Copper in Indonesian Chalcedony
Examination of two chalcedony cabochons from a new source in Indonesia reveals an abundance of native copper.
Aquamarine with Fluorite Inclusions
A large aquamarine crystal from Pakistan displays multiple eye-visible fluorite inclusions.
“Rime Ice” on Trees in Jeremejevite
Crystal inclusions in a natural diamond resemble a unique scene.
Surfite: A Surfboard Manufacturing Byproduct
Crystal inclusions in a natural diamond resemble a unique scene.
Prismatic Zircon in Kashmir Sapphire
Elongated zircon inclusions display attractive birefringent interference colors in a blue sapphire from Kashmir.
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