Pyrolusite with limonite inclusions
High Purity Peruvian Pyrite
Types of Garnet Minerals
Ore-bearing fibrous calcite
banded aralite containing silicon carbide
spinel crystal
silverite
UV-irradiated ruby
Quartz crystals of hydrothermal deposits
Polished Amethyst
Gurasada agate
Peruvian cubic pyrite
calcite
Basalt of the Canary Islands, Spain
fault breccia
clinopyroxene
Uranium bearing igneous rock
Sphalerite
C ă limani sulfur
Celestite containing shiny pyrite
Blue crystal mineral under ultraviolet irradiation
Blue crystal
Techereu Jade
Cerussite