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How minerals can form some rocks, the color, and texture
Extrusive rocks form above the surface, cooling quickly and bearing a glassy or fine texture and may be vesicular. Intrusive rocks form below the surface and form slowly, giving it a coarse texture.
Course grained texture.
The texture of a rock is determined by the rate it takes the molten to cool to form the rock.
clastic texture
Composition and color are two general properties of rocks. Two others include texture and form.
Igneous rocks which form by the crystallization of magma at the surface of the Earth are called extrusive rocks. They are characterized by fine-grained textures because their rapid cooling at or near the surface did not provide enough time for large crystals to grow. Rocks with this fine-grained texture are called aphanitic rocks. The most common extrusive rock is basalt.
Conglomerate is a rock that has pieces of other rocks glued together to form one larger chunk. Therefore, they have a coarse-grained texture
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the wind , because it pushes the rocks from the top to the ground and and the rough texture of the rocks or soil is the cause for it to break down ( rock)
The texture is mostly determined by the time spent in cooling from magma or lava. The quicker the transition from molten to solid, the finer the texture.
Coarse-grained texture