52g Pyrite Crystals on Host Rock poker chip Welo Ethiopian hydrophane opal mineral

Welo Ethiopian hydrophane opal mineral specimen with with  a beautiful honeycomb pattern and an amazing play of color

Weight: 450g

Weight: 408g

Beautiful white calcite crystal on a bed of smaller calcite crystals

52g Pyrite Crystals on Host Rock poker chip Welo Ethiopian hydrophane opal mineralBeautiful pyrite mineral specimen on the host rock from Spain. This locality's limestone matrix can dissolve in water, so the specimens matrix needs to stay dry for these pyrite cubes to stay in place. Locality: Navajn, La Rioja, Spain Measurement: Approx. 47mm x 34mm x 25mm Weight: 52. 61g FYI: When mined, these pyrite cubes typically do not stay in place on the host rock unless buried deep within the matrix. Almost all of the on matrix pyrite