How Will You Describe Quartz?
Quartz, the commonest of all minerals, consists of silica. Most kinds of rocks contain it in colorless, often transparent form. Colored varieties include semi-precious…
Tag
Geodes
What Are Geodes and How Do They Form?
What Are Geodes and How Do They Form? Geodes are spherical rocks that contain hollow cavities lined with crystals. The name geode comes from