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Nice, stable, slabbed material is sometimes used to make small boxes and other ornaments. Rhodochrosite forms in hydro thermal veins of copper, lead and silver mines, and as secondary deposits in sedimentary layers of manganese oxide. All stones cut from material mined in Argentina. Some of the common modes of occurrence and their lapidary uses are described below. Inexpensive mineral collections are available in the Geology.com Store. Since rhodochrosite serves as an important manganese ore, scientists have synthesized this material for research purposes. It is found in Argentina, Peru, Colorado and Montana, U.S, and Quebec, Canada. Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree.... A sample of rhodochrosite, trigonal manganese carbonate, from N'Chwaning Mine in Kuruman, Northern Cape province, S.Af. Notable occurrences are at Cavnic in Romania and at Butte, Montana, and Leadville, Colorado, in the United States. For detailed physical properties, see carbonate mineral (table). It streaks white, and its Mohs hardness varies between 3.5 and 4. Real rhodochrosite crystals are only found in one location in a mine in Colorado. It is found in Argentina, Peru, Colorado and Montana, U.S, and Quebec, Canada. credit: Yasu Okazaki Rhodochrosite has a lovely natural pink to red color. Other minerals such as amethyst, smoky quartz, sapphire, amazonite, opals, jaspers, and a wide variety of collectable minerals are also found … Light pink Rhodochrosite crystals have come from Kapnik, Maramures Co., Romania. Beads and cabochons made of imitation rhodochrosite are in the gem and jewelry market. Then, as the popularity of mineral collecting increased, the well-formed crystals found at the Sweet Home Mine became many times more valuable than the lapidary material. The bright pink color can become grayish, yellowish, or brownish in response to this chemical variability. Topaz and rhodochrosite only make up a small part of the absolutely bewildering array of different minerals and crystals which inhabit Colorado. Rhodochrosite has a hardness of only 3.5 to 4 and has perfect cleavage in three directions. Rhodochrosite (whose name means rose-colored) often forms pink and white bands. SG: 1.99, H: < 3, RI: 1.55, no birefringence blink. Specimens from the Wolf Mine are very difficult to obtain. It is found in a small number of locations worldwide where other manganese minerals are usually present. Raw rhodochrosite is found in just a few locations worldwide: Argentina, South Africa, Peru, Romania, Japan, Mexico, and Russia. Colorado Rhodochrosite: Rhodochrosite is the official state mineral of Colorado. The rare transparent material that is not suitable as a mineral specimen is sometimes faceted into attractive pink and red gems. These substitutions of other elements for manganese change the composition and alter the specific gravity, hardness, and color of the mineral. Rhodochrosite occurs as a hydrothermal vein mineral along with other manganese minerals in low temperature ore deposits as in the silver mines of Romania where it was first found. This article was most recently revised and updated by, https://www.britannica.com/science/rhodochrosite, Amethyst Galleries - The Mineral Rhodochrosite. One of the few locations in the world where they are found is the Sweet Home Mine, near Alma, Colorado. Banded rhodochrosite is mined in Capillitas, Argentina. Rhodochrosite has a variable chemical composition. Miners usually remove the rhodochrosite from the wall rock of these veins and cut it into thin slabs with a diamond saw. Synthetics. These include Argentina, South Africa, Peru, Montana, Colorado, Russia, Romania, Spain, China, Gabon, Mexico, and Japan. Specimen and photo by Arkenstone / www.iRocks.com. Notable occurrences are at Cavnic in Romania and at Butte, Montana, and Leadville, Colorado, in the … The mine is located in the Andalgalá Department, Capillitas Province, in northwestern Argentina. Rhodochrosite is generally easy to identify and is rarely confused with other minerals. This specimen is about 5 x 4 x 2 centimeters in size and was taken from the Sweet Home Mine. Unusual Shape and color of Rhodochrosite from Moanda Mine, Gabon. Rhodochrosite is known for its inspiring qualities while meditation. Are extremely valuable as mineral specimens in fractures and cavities of metamorphic and rocks. Polished surfaces a microscope the pink material is translucent, with sugary internal visible... A Mine in 1873, the rhodochrosite from Moanda Mine, Gabon a appearance. Of Colorado signing up for this email, you are agreeing to news, offers and... Since rhodochrosite serves as an ore of manganese oxide cold hydrochloric acid produces a weak effervescence is. 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