The Grid: A serpentine pseudomorph after carbonate
Cooking crystals in the Earth cauldron
Blue Olivine in an unusual basalt
Calcite crystals of microbial origin
A fragile equilibrium
Emoji from meteorites; impact spherule
Hedenbergite - Ilvaite skarn, Calamita, Island of Elba
Goethite with hematite
Condensation drop on sulphur
Sphalerite's "Transformer"