Article Search Results

Show Filters
Showing 196 results for "*"
Russian demantoids with pure color and horsetail inclusions
Update on Russian Demantoid Production

Alexey Burlakov shares insights on the current production of Russian demantoid and emeralds.

Read More

Omphacite (left) and chromite (right) crystals composing a
Omphacite and Chromite: A "Bimineralic Inclusion" in Diamond

Two inclusions appear joined in a diamond host.

Read More

Pink tourmaline inclusion in spodumene.
Pink Tourmaline in Spodumene

A large, rare inclusion is found in a spodumene host.

Read More

Bluish green spinel in Sri Lankan yellow sapphire.
Green Crystals in Yellow Sapphires

Two yellow sapphires yield surprising green inclusions.

Read More

Colorless beryl crystal in purple fluorite specimen.
Beryl Crystal in Fluorite

A purple fluorite contains an elongate, rod-shaped beryl crystal.

Read More

Dendritic inclusions in sapphire.
Dendritic Inclusions in Cambodian Sapphire

A sapphire from Pailin, Cambodia, hosts inclusions that are unusual for this material.

Read More

Bright green chromium diopside inclusion in diamond octahedron.
Quarterly Crystal: Cr-Diopside in Diamond

A bright green chromium diopside inclusion is seen in a diamond from South Africa's Kimberley mine.

Read More

Rough CLIPPIR diamonds
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.

Read More

Shattuckite typically forms aggregates of circular to spherulitic masses composed of acicular crystals
Quarterly Crystal: Shattuckite in Quartz

A quartz crystal from Namibia, hosting of spherulitic to circular masses of shattuckite, is examined.

Read More

Micro-Features of Ruby
Inclusions in Natural, Synthetic, and Treated Ruby

Provides a visual guide to the internal features of natural, synthetic, and treated rubies.

Read More