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.
These rocks include andesite, basalt, obsidian, pumice, rhyolite, scoria, and tuff. Pictures and brief descriptions of some common igneous rock types are shown on this page. Diorite is a coarse-grained, intrusive igneous rock that contains a mixture of feldspar, pyroxene, hornblende and sometimes quartz.
Minerals and precious stones: Earthâs jewels. Most minerals on Earth are formed when magma rises from the depths of the planet to the surface and then cools.dentifying minerals. Geologists are scientists who study the materials that make up the planet. To identify and classify the minerals in rocks, geologists examine a number of features, such as hardness, transparency, form and structure, color, streak color, and sparkle.