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 very lustrous, red-orange crocoite single crystal with a...
A small azurite single crystal partially pseudomorphosed into...
A cluster of brilliant tourmaline crystals associated with...
An openwork specimen of native copper exhibiting an atypical...
A well-formed, pale green prehnite sphere set in the center...
Pyrite exhibiting a rare pseudo-rhombohedral habit, with...
A lemon-yellow brazilianite single crystal, well-defined and...
A specimen of orthose featuring two crystals twinned...
A small, well-formed, and well-defined octahedral crystal of...
A spodumene crystal of the kunzite variety displaying a...
This specimen features very abundant amethyst...
This specimen features a quartz single crystal with a chlorite...
This specimen features a half-geode whose cavity is largely...
This aragonite from Minglanilla, Spain, features a compact...
A peridot duo showcasing two very different expressions of...
Specimen of gypsum featuring a very abundant crystallization...
Specimen of pyromorphite featuring a very abundant...
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...