News

Spiral structure in a Colombian emerald
Blue residues and gas in bubbles in synthetic sapphire
Micrographs

Blue residues and gas in bubbles in green synthetic quench-cracked flame fusion sapphire

Read
Ruby from Cambodia
Micrographs

Ruby from Cambodia (TE2): Light interference in a thin fracture containing artificial glassy material

Read
“Boehmite Needles”
Research

“Boehmite Needles” in Corundum Are Rose Channels

Read
Origine et croissance des minéraux des fissures alpines dans les Alpes suisses occidentales
Research

Origine et croissance des minéraux des fissures alpines dans les Alpes suisses occidentales: enregistrement de l'écoulement des fluides pendant l'exhumation

Read
Beads cut from gastropod mollusc shell disguised in a coral necklace
Research

Beads cut from gastropod mollusc shell disguised in a coral necklace

Read
Natural “quahog” pearls from the M. mercenaria mollusk
Research

Natural pearls of the Veneridae family

Read