A dodo egg is a renewable food item that is randomly left behind by a dodo bird. Dodo eggs are large and oval in appearance with a light blue shell with a wavy pattern or darker areas.
Igneous rocks are formed from the solidification of molten rock material. There are two basic types. Intrusive igneous rocks crystallize below Earth's surface and the slow cooling that occurs there allows large crystals to form. Examples of intrusive igneous rocks are diorite, gabbro, granite, pegmatite, and peridotite.
Common metal-bearing minerals. A mineral deposit is a natural concentration of minerals in the earthâs crust. The degree of concentration is called the grade of a mineral deposit. An ore deposit is a mineral deposit which has high enough grades of metal that makes it economic to mine.ateritic soil with concentrated aluminum ore formed by weathering. 1  The settling out of heavy minerals like sulphides or chromium oxides to the bottom of a chamber of cooling molten magma. 2  Simple weathering of rocks can leave an oxidized soil residue of concentrated metal-minerals.