3 tumbled polished rhodochrosite chunks. See pics for approx size info (each square of the grid is 5mm). A good size for wire wrapping or lapidary work, cabochon making. Rhodochrosite is a pink-to-rose-red manganese carbonate mineral (MnCO?), known for its distinctive bands and varying hardness from 3.5 to 4.5 on the Mohs scale. It forms botryoidal or stalactitic masses and rare, high-quality crystals, often found in hydrothermal veins associated with silver ore. While prized as a decorative stone for jewelry and carvings, its softness requires protective settings. Rhodochrosite, a national symbol of Argentina and Colorado's state mineral, holds significant cultural and historical value Shipped promptly, insured and gift boxed.