There are three main types of rock: Igneous, Sedimentary, and Metamorphic.
Igneous rocks are made from melted rock. When magma or lava cools, it becomes solid. Examples: granite and basalt.
Sedimentary rocks are made from small pieces of rocks, sand, or even plants and animals. These pieces form layers, and over time they become rock. Examples: sandstone and coal.
Metamorphic rocks are rocks that change with heat and pressure. They do not melt, but their shape and minerals change. Examples: marble and slate.
In other words igneous/youngest,metamorphic/middle-aged, and sedimentary/oldest, I would presume..
ReplyDeleteWhat is rock? in deep
ReplyDeleteGold is the one type of sedimentary rock . Right
ReplyDeleteMetamophic rock also be little bit melted then they convert in layers are called stratifid rocks as like clay convert to shall by heat prassur and time period.
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DeleteWhat is the difference between rocks and stone?
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ReplyDeleteWhich one of these rocks are in Nguni languages "ihlalutye" "inyengane'
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