Quartz is considered the second most common mineral on the earth. The most common mineral in case you are interested is Feldspar which in part produces Moonstone. However, not all quartz is gem quartz. Gem quartz includes many varieties of wonderful gemstones that vary in color and are extremely attractive. It should be noted that quartz gemstones are usually the most affordable by carat. Quartz is created from silicon dioxide. It is found in almost every type of rock within the earth’s crust. However, most quartz gemstones are usually found within cavities and lava veins that are near or include hydrothermal centers. Pegmatite’s are also a common spot to find quartz. Some of the most famous varieties of quartz are Amethyst, Citrine, Agate and Onyx. It should be noted that there are two main types of gem quartz. They include either larger crystals that are usually translucent to transparent and can come in a wonderful varieties of colors. These types of gem quartz are coarsely crystalline. They include Amethyst and Citrine. The other types of quartz are created from crystals, but extremely small crystals which can not be seen with the naked eye. They have a grainy texture, but do come in beautiful colors. Two types of grainy or cryptocrystalline quartz are Onyx and Agate. Gem quartz’s have been known to man since the beginning of time and have had mystical, medicinal and magical attributes associated with them from time to time. Usually these attributes included the ability to ward off evil or disease.

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