886g Cubic Pyrite Specimen from Spain Heulandite I've worked with many Ethiopian

I've worked with many Ethiopian opals and this particular piece has extremely intense color play that displays the whole rainbow of colors

This amethyst cluster has a a couple nice larger terminated crystals and a couple smaller crystals that are grown into it

are encrusting the whole opposite side

Measurements: 186mm x 141mm x 88mm

Weight: 42g

886g Cubic Pyrite Specimen from Spain Heulandite I've worked with many EthiopianAesthetic duel pyrite cube specimen from Spain. These two amazingly formed pyrite cubes are intertwined and embedded in the natural host rock. A beautiful piece. 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. 5. 5" x 3. 5"x 2. 2" Weight: 886 grams FYI: When mined, these pyrite cubes typically do not stay in