True marble was originally limestone that has been altered by heat and pressure over time. These materials originally deposited as unconsolidated sediments under water by chemical precipitation and by living organisms, have been buried, heated and subject to huge confining pressures over lengthy periods of time. Such processes of metamorphism have transformed the limestone to a denser, harder crystalline rock.
True marble was originally limestone that has been altered by heat and pressure over time. These materials originally deposited as unconsolidated sediments under water by chemical precipitation and by living organisms, have been buried, heated and subject to huge confining pressures over lengthy periods of time. Such processes of metamorphism have transformed the limestone to a denser, harder crystalline rock.
Under this heading are mainly those materials that have formed through a process of crystallization of an original liquid molten rock solution (Magma). The resulting wide range of mineral types, their structures, colours, shapes, sizes and distribution, is governed by the original chemical composition of the liquid phase and the changing, temperature, pressure and chemical environments that the molten body goes through as it cools to become solid rock.
Under this heading are mainly those materials that have formed through a process of crystallization of an original liquid molten rock solution (Magma). The resulting wide range of mineral types, their structures, colours, shapes, sizes and distribution, is governed by the original chemical composition of the liquid phase and the changing, temperature, pressure and chemical environments that the molten body goes through as it cools to become solid rock.
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