Update on Russian Demantoid Production
Alexey Burlakov shares insights on the current production of Russian demantoid and emeralds.
Omphacite and Chromite: A "Bimineralic Inclusion" in Diamond
Two inclusions appear joined in a diamond host.
Pink Tourmaline in Spodumene
A large, rare inclusion is found in a spodumene host.
Green Crystals in Yellow Sapphires
Two yellow sapphires yield surprising green inclusions.
Beryl Crystal in Fluorite
A purple fluorite contains an elongate, rod-shaped beryl crystal.
Dendritic Inclusions in Cambodian Sapphire
A sapphire from Pailin, Cambodia, hosts inclusions that are unusual for this material.
Quarterly Crystal: Cr-Diopside in Diamond
A bright green chromium diopside inclusion is seen in a diamond from South Africa's Kimberley mine.
The Very Deep Origin of the World’s Biggest Diamonds
Explores an exceptional family of diamonds, referred to as “CLIPPIR” (Cullinan-like, Large, Inclusion-Poor, Pure, Irregular, and Resorbed), that formed in a superdeep environment.
Quarterly Crystal: Shattuckite in Quartz
A quartz crystal from Namibia, hosting of spherulitic to circular masses of shattuckite, is examined.
Inclusions in Natural, Synthetic, and Treated Ruby
Provides a visual guide to the internal features of natural, synthetic, and treated rubies.