884g Cubic Pyrite Crystal on Matrix fancy color tanzanite A very gemmy mineral specimen

A very gemmy mineral specimen

This very cool tremolite crystal has a very vibrant lime green color that goes to a transparent brownish color towards the termination

Cruzeiro Mountain

Measurements: 69mm x 47mm x 13mm

Locality: Unknown

884g Cubic Pyrite Crystal on Matrix fancy color tanzanite A very gemmy mineral specimenBig and beautiful 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. 99mm x 96mm x 95mm Weight: 884 grams FYI: When mined, these pyrite cubes typically do not stay in place on the host rock