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Crystal Encyclopedia

Tiger Iron

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Tiger Iron is a metamorphic rock composed mainly of tiger’s eye, red jasper, and black hematite. It’s admired for its remarkable bands of color and lustrous finish, which make it popular in jewelry and ornamentation. The layers of golden tiger’s eye, dark hematite, and red jasper create a striking, multicolored appearance, each contributing unique reflective […]

Ceruleite

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Ceruleite is a beautiful and relatively rare mineral that belongs to the secondary copper mineral group. It is known for its stunning blue color and is often sought after by collectors and enthusiasts due to its vibrant appearance and unique crystalline structure. The name “ceruleite” is derived from the Latin word “caeruleus,” which means “sky-blue,” […]

Ouro Verde Quartz

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Ouro Verde Quartz is a striking and rare variety of quartz known for its vibrant greenish-yellow coloration. This gemstone is treasured for its unique beauty and is highly sought after by collectors and jewelry enthusiasts alike. Definition: Ouro Verde Quartz, sometimes referred to simply as “Ouro Verde,” derives its name from Portuguese, where “Ouro Verde” […]

Malaya Garnet

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Malaya Garnet, also known simply as “Malaya,” is a unique and relatively rare gemstone that has gained recognition in the world of colored gemstones. It is highly regarded for its striking combination of colors, which can range from a rich reddish-orange to pinkish-brown and sometimes even a vibrant peach hue. Malaya Garnet is a type […]

Blue John

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Blue John is a rare and highly valued mineral found only in the Blue John Cavern and Treak Cliff Cavern in Castleton, Derbyshire, England. It is a form of fluorspar, a halide mineral composed of calcium fluoride (CaF2), often with impurities that give it its distinctive bands of colors, ranging from purples and blues to […]

Andamooka Opal

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Andamooka Opal is a unique variety of opal found in the Andamooka region of South Australia. It’s renowned for its vibrant and striking colors, ranging from brilliant flashes of red, orange, and green to mesmerizing blues and purples. What sets Andamooka Opal apart is its distinctive “matrix” or “vein” structure, where the opal forms within […]

Kakortokite

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Kakortokite is a rare igneous rock primarily composed of perthitic microcline feldspar with minor amounts of other minerals such as nepheline, sodalite, and/or eudialyte. It typically forms in alkaline intrusions, often associated with nepheline syenites or other alkali-rich rocks. Kakortokite is known for its striking colors and patterns, often displaying vibrant hues of red, pink, […]