What are the ten hardest minerals?
There are many different minerals, but ten are considered the most difficult. They are:1. Diamond2. Uranium3. Platinum4. Tungsten5. Sulfur6. Calcium7. Iron8. Tin9. Copper10. Magnesium What mineral is black splintery? The mineral black splintery is a type of salt. It is a natural mineral that is found in many places around the world. Black splintery is ... Read more...