they are called kimberlites and lamprolites.
Coal deposits are commonly referred to as coal seams or coal beds. These are layers of coal that are found buried beneath the Earth's surface.
The mining process where rock is stripped away to expose mineral deposits near the surface is called surface mining. This method is commonly used when mineral resources are located close to or just beneath the earth's surface, making it easier and more cost-effective to extract minerals. Surface mining can include open-pit mining, strip mining, and quarrying.
Diamonds are found in diamond mines that circulate around volcanic pipes: mined diamonds.As well, diamonds are found under water where the water has washed over volcanic pipes that contain diamonds: alluvial diamonds.
Gold is formed in nature through a process called hydrothermal deposition. This occurs when hot water carrying dissolved gold and other minerals rises to the Earth's surface and cools, causing the gold to solidify and accumulate in veins or deposits. Over time, geological processes such as erosion and tectonic movements can bring these gold deposits closer to the surface where they can be mined.
Land with rich deposits of iron ore is called an iron ore reserve or iron ore deposit.
The flat surface of a diamond is called the table if it is on the 'top' of a cut diamond. Otherwise, the flat surface is called a facet, some with specific names. Read more, below.
Primary and secondary refer to the order in which they come out, surface waves are called surface because they resonate close to the surface
These are called veins
Diamonds are erupted to the earth's surface by way of volcanic pipes. Diamonds are mined from these pipes. When water flows over these pipes, diamonds can tumble into the stream bed, and some diamonds are carried to the mouths of rivers into salt water. These are called alluvial diamonds. The name of the diamond deposit, then, depends on where you find the diamanods. .
Mineral deposits beneath Earth's surface that differ from the surrounding rocks are called "ore deposits." These deposits often contain valuable minerals or metals that can be economically extracted. They can form through various geological processes, such as igneous, sedimentary, or metamorphic activities. The specific composition and concentration of minerals in these deposits make them significant for mining and resource extraction.
One flat surface is a table. Many flat surfaces are facets.
Large underground lava deposits are called magma chambers. These chambers are reservoirs of molten rock beneath the Earth's surface that can feed volcanic eruptions when the magma rises to the surface through volcanic vents.
Surface gold deposits are often referred to as placer deposits. These are formed by the erosion of gold-containing rocks and the subsequent deposition in riverbeds, beaches, or other sedimentary environments.
The base of diamond is carbon.Read more, below.
Coal deposits are commonly referred to as coal seams or coal beds. These are layers of coal that are found buried beneath the Earth's surface.
Diamonds come from the Earth's mantle, where high pressure and temperature cause carbon atoms to form the crystal structure of a diamond. These diamonds are brought to the surface through volcanic eruptions in rocks called kimberlites and lamproites.
A scratch on a diamond is known as an abrasion. It refers to a visible mark or line on the surface of the diamond that is caused by wear or damage. Abrasions can affect the diamond's clarity and overall appearance.