4077g Huge Navajún Pyrite Cube Specimen on Matrix azurite Many of these amethyst crystals

Many of these amethyst crystals or "roots" you see on the market are either heavily included or have polished terminations

Measurement: 46mm x 40mm x 35mm

Weight: 346g

This beautiful  tanzanite crystal has a great crystal structure and overall aesthetically pleasing

although some have said people call it the "Super 7 Melody Stone"

4077g Huge Navajún Pyrite Cube Specimen on Matrix azurite Many of these amethyst crystalsHuge aesthetic pyrite cube Specimen from Spain. The pyrite cubes sit on top of the natural host rock and display very nicely. 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. 244mm x 204mm x 98mm Weight: 4077grams FYI: When mined, these pyrite cubes typically do not stay in place on the host rock unless