Rocks come from magma, which is the molten material found within the earth. When magma cools, either above or below the earth's surface, it crystallizes and forms the igneous rocks that can later be changed into metamorphic or sedimentary rocks. Magma, which can be considered molten rock, is referred to as lava when it reaches the earth's surface.Know More
The igneous rocks initially formed from cooled and crystallized magma can eventually be weathered down into fragments by the forces of erosion. They then become sedimentary rocks through the additional processes of compaction and cementation. Both igneous and sedimentary rocks can be transformed into metamorphic rock when subjected to pressure and temperature conditions other than those which originally formed them. Heat is produced by the friction generated by movements of Earth's tectonic plates, and the creation of mountains creates pressure. An intrusion of magma into surrounding rock can also be a source of heat. Overall, the temperatures and pressures needed to produce metamorphic rocks are much greater than those found on the earth's surface.
Each of the three major classes of rock can be transformed into one of the other classes through the continuing processes of heat, pressure and erosion. This ongoing transformation of rocks is referred to as the rock cycle.Learn More
Minerals are solid, naturally occurring, inorganic compounds that possess an orderly internal structure and a regular chemical composition. A mineral species has to possess these five characteristics to be regarded as scientifically valid.Full Answer >
Mica is a mineral that is commonly used in the electrical industry, to produce shingles and other building materials, and to prepare samples for microscopy. It has also been used to create window-like panes on stoves and lanterns, and to facilitate pigment suspension in paints and dyes. Its sheet-like cleavage structure and high heat resistance make it an ideal substance for these purposes.Full Answer >
Marble is a metamorphic rock. This means that it was formed out of another rock after eons of heat and pressure. Marble is formed out of pure limestone.Full Answer >
The electron configuration for copper is 1s2 2s2 2p6 3s2 3p6 4s1 3d10. Copper is an electropositive element, meaning it donates electrons to other atoms. In general, copper can donate either one or two electrons.Full Answer >