Ludwigite radial crystal clusters

Melanterite crystal in a vein

Painite one of few known crystals

Meneghinite crystalline crust on Quartz

Peridot green crystals in basalt

Pyrite crystals

Magnesite crystal cluster with Pyrrhotite

crystal lollipop orange

crystal lollipop pink

Pyrolusite vein of prismatic crystals

crystal lollipop blue

crystal lollipop green

crystal lollipop cyan

snowflake crystal

Metacinnabar crust of small black crystals

Claw and Crystal Ball

snowflake large blue crystal

Ice crystal

Mosandrite crystals in Aegirine

crystal lollipop yellow

Metatorbernite green platy crystals on granite

Krohnkite crust of multiple crystals

pyrite euhedral parabolic crystals

crystal lollipop gray