Iridescent goethite (turgite) on quartz - Itremo Massif,...
This specimen features a quartz plate largely covered with...
This specimen features a quartz plate largely covered with...
Colorless quartz crystal with numerous chlorite inclusions,...
A well-formed, pale green prehnite sphere set in the center...
A lemon-yellow brazilianite single crystal, well-defined and...
A spodumene crystal of the kunzite variety displaying a...
This specimen features a quartz single crystal with a chlorite...
This specimen features a half-geode whose cavity is largely...
A peridot duo showcasing two very different expressions of...
Specimen of gypsum featuring a very abundant crystallization...
Very fine quartz specimen featuring numerous crystals growing...
A floating specimen combining lamellar hematite crystals with...
This specimen features several well-defined magnetite...
Specimen featuring an iron rose formed by lamellar hematite...
This specimen features several haüyne crystals of a...
This Baltic amber specimen displays a yellow-orange colour and...
This specimen features a small orange to golden tourmaline...
This specimen features several honey-yellow barite crystals,...
Torbernite exhibiting beautiful fan-shaped crystallization in...
A pair of natural tanzanites from Tanzania, bringing together...
This specimen features hornblende and hydroxylapatite crystals...
A small cluster of pyromorphite crystals pseudomorphosed into...
A specimen comprising a dense cluster of azurite crystals, a...
A colourless to slightly milky, translucent quartz crystal...
A smoky quartz point featuring a haematite cap on a heavily...
A specimen featuring a quartz plate largely covered with...
A small collection featuring four mineral thumbnails from...
A floating specimen combining lamellar hematite crystals with...
A floating specimen composed of several lamellar hematite...
A small piece of azurite forming a flower-like shape, with...
A beautiful specimen of crocoite composed of numerous bright...
An alpine quartz specimen featuring two main crystals joined...
A long, 17.5-cm double-terminated gypsum single crystal,...