Rare Musgravite Crystal in Green Sapphire
A surface-reaching crystal in a green sapphire is identified as musgravite.
Hedenbergite in Quartz
Examination of polished quartz samples reveals crystal inclusions identified as hedenbergite and sphalerite.
Interesting Metallic Platelets in Morganite
Skeletal formations of metallic reflective thin films are observed in a pinkish orange morganite.
Fireworks Display in Russian Emerald
The inclusion scene in a Russian emerald resembles fireworks illuminating a night sky.
Anatase in Brazilian Quartz
Anatase crystals create stunning blue interference colors in a Brazilian quartz host.
Kaleidoscope of Butterflies and Tiny Fish in Diamonds
Feather inclusions observed in two natural diamonds evoke scenes in nature.
Diopside and Danburite in Rare Orange Sodalite
Examination of a rare orange sodalite reveals diopside and danburite inclusions, as well as short-lived tenebrescence.
“Frozen River” on the Surface of an Atrina Pearl
Layered aragonite crystals create a translucent frosted surface appearance on a nacreous pearl from an Atrina mollusk.
Unusual Hematite Lattice Pattern in Plagioclase Feldspar
Elongated hematite platelets form a lattice pattern in a sunstone cabochon.
Mask Inhabiting a Natural Diamond
The mirror image of a feather inclusion in a natural diamond resembles a theater mask.
Quarterly Crystal: Magnesioaxinite
A color-change magnesioaxinite crystal specimen from Tanzania contains an interesting inclusion scene.
Brown Zoning in Diamond
Strong linear brown zoning is observed in a Fancy Dark yellow-brown diamond.
Rainbow-Colored Partially Healed Fissure in Blue Sapphire
An iridescent partially healed fissure is observed in a blue sapphire from Sri Lanka.
Written Characters in Black Opal
Play-of-color patches in black opal display interesting written character patterns.