While commonly used to make fertilizer apatite is a phosphate mineral that produces rocks of gem quality usually occurring as green crystals though yellow and blue are also available. The transparent green gemstones of the apatite mineral are called asparagus stone. North carolina is home to several emerald mines. Emerald dealing in afghanistan gems what do raw emeralds look like wyoming state geological survey gemstone facts the silver lady gemstone meanings crystal propertiesmon green rockineralsgem mineral identification treasure mininggreen gemstones largest collection with over 10 000 gemsgem mineral identification treasure mininggreen gemstones largest collection with over 10 000 gemsfuchsite. The green gems may exhibit chatoyancy or iridescent luster like cat s eye.
Then consult a streak test chart to identify the gemstone based on the color of its streak. Green gems may have blue or yellow secondary hues present. A few major gemstone streak colors include light blue for azure white for gypsum and greenish blue for turquoise. Gemologists assess color by considering hue tone and saturation. Emerald crystals can be found in quartz or mica schist.
Also known as titanite and is usually translucent or opaque and quite tricky to cut. Its cousin is aquamarine. Emerald one of the seven precious gemstones emerald is the green variety of the mineral beryl. In general a pure green hue is the most desirable and more expensive. Also known as titanite and is usually translucent or opaque and quite tricky to cut.
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In general a pure green hue is the most desirable and more expensive. Then consult a streak test chart to identify the gemstone based on the color of its streak. While commonly used to make fertilizer apatite is a phosphate mineral that produces rocks of gem quality usually occurring as green crystals though yellow and blue are also available.