Many minerals form beautiful crystals, but the most prized of all are gemstones. Uncut gems often look fairly ordinary–like rocks. It's only when they are cut and polished that they obtain the ...

All plants require 17 elements ... review the mineralogical composition of common rocks that make up the soil parent material (Table 1). Primary minerals form at elevated temperatures from cooling ...

There would be no bright and colorful fireworks without rocks and minerals. A firework is produced ... This explosion propels brightly burning particles in all directions, creating streaks of ...