Interesting Pyrite Crystal Specimen on Host Rock fl This is an excellent aquamarine

This is an excellent aquamarine specimen that will look great in any collection

Measurement: 38mm x 24mm x 13mm

Weight: 71

Note: Estimating yield from a piece of rough is not an exact science

this particular source of hyalite opal will actually fluoresce in daylight

Interesting Pyrite Crystal Specimen on Host Rock fl This is an excellent aquamarineBeautiful 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. 44mm x 41mm x 34mm Weight: 74. 5g 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