Stone is a natural solid formation of one or many minerals. There are thousands of types of stone that have been quarried through the centuries. The minerals in stone came from the same liquid and gas minerals that formed the earth. The earth developed as a massive body of gas and liquid minerals that slowly cooled and condensed to a solid core. Through pressure, the earth’s crust began to form and heavy minerals were forced down to the core of the earth where they were trapped.

As the crust got thicker, it squeezed around the inner core which created intense pressure and heat from within the earth. Crystals and other solid forms began to expand and erode, heat and pressure pushed the solid minerals up to the earth’s surface which formed colossal rock beds. It took up to one hundred million years to form some of these beds and can be hundreds of millions of years old. Many of the beds are now used as quarries where stone is mined. Most of these minerals can be identified by their color, hardness and crystal formation.

Crystals come in a variety of shapes and sizes. The wide array of these minerals is often difficult to identify. Many stones look very similar to each other however, they are all very different.

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