Description
Mercedes Calcite (Chalcopyrite on Calcite) Specimen Malay Garnet A Mohs Hardness Scale sample 5384562_23601 ancient mammal tooth Size:2.5ct 2.75ct forward movement A Mohs Hardness Scale sample kit is a collection of reference minerals with known hardness values The contrast between the darker tourmaline and lighter host rock makes the crystals stand out clearly from multiple angles