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The Mineral emerald. Emerald is the green variety of Beryl, and its most precious and valuable variety. Its intense green color has given it status as an important gemstone throughout the centuries. The color of Emerald is green to emerald-green. The light green form of Beryl is not recognized as Emerald, but rather Green Beryl.
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Fluorite has a wide variety of uses. The primary uses are in the metallurgical, ceramics, and chemical industries; however, optical, lapidary, and other uses are also important. Fluorspar, the name used for fluorite when it is sold as a bulk material or in processed form, is sold in three different grades (acid, ceramic, and metallurgical).
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The Mineral hedenbergite. Hedenbergite forms a series with Diopside, the magnesium equivalent of Hedenbergite, and may be partially replaced by it. Diopside and Hedenbergite can even occur together in a single crystal, with a core of Hedenbergite and outer zone of Diopside. Hedenbergite is often confused and misidentified as both Diopside and ...
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Fluorite can be massive, granular, or euhedral as octahedral or cubic crystals. Fluorite is a common mineral in hydrothermal and carbonate rocks worldwide. Fluorite unit cell: …
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Browse 1,685 authentic fluorite stock photos, high-res images, and pictures, or explore additional fluorite crystal or yellow fluorite stock images to find the right photo at the right size and resolution for your …
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The Mineral quartz. Quartz is one of the most well-known minerals on earth. It occurs in basically all mineral environment s, and is the important constituent of many rock s. Quartz is also the most varied of all minerals, occurring in all different forms, habits, and colors. There are more variety names given to Quartz than any other mineral.
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The Mineral azurite. Azurite owes its name to its beautiful azure-blue color, which makes it a very popular and well-known mineral. Large, well-formed, and deep blue crystals from Tsumeb (Namibia), Bisbee (Arizona), and Milpillas (Mexico), make exquisite collector's minerals that are regarded as some of the finest mineral masterpieces in nature.
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The Mineral scolecite. Scolecite is a member of the zeolite group, and is closely related to Natrolite and Mesolite. It forms a series with those two minerals, and is the calcium-rich end member. Chemical analysis or optical tests may be required to distinguish Scolecite from Natrolite, and a single crystal may even contain part of each mineral ...
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Fluorite, or fluorspar, is a mineral composed of calcium and fluorine. As an allochromatic mineral, fluorite is colorless in its purest form. However, natural processes during its …
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Halite, the natural form of salt, is a very common and well-known mineral. It is found in solid masses, and as a dissolved solution in the oceans and in salt lakes. The inland lakes that are rich in salt exist in arid regions, and may also be below sea level without an outlet. These lakes evaporate during dry seasons, causing a recession in the water level and an …
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Rocks and Minerals - Fluorite fluorite stock pictures, royalty-free photos & images. Rocks and Minerals - Fluorite. Translucent purple and green color Fluorite crystal standing point gemstone isolated on white background. Healing and clearing energy concept. Translucent purple and green color Fluorite crystal standing point gemstone isolated on ...
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The Mineral luzonite. Luzonite is a rare mineral that is dimorphous with Enargite. Luzonite forms in tetragonal crystals, while Enargite forms in orthorhombic crystals. Luzonite and Enargite sometimes form together in single altering crystals with different symmetry and cleavage habits. Luzonite is named after its occurrence in Mancayan, Luzon ...
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Fluorite (also known as fluorspar) is a gangue mineral that belongs to the halide minerals. Commercially, it is named fluorspar and is composed of calcium fluoride (CaF2). It is used industrially in the manufacturing of certain enamels, glass, and some optical lenses and as smelting flux. Even though pure fluorite is …See more on rockseeker
WEBModified date: 09/09/2023. Fluorite, also known as fluorspar, is a widely occurring mineral found in various geological settings around the world. It is a colorful and highly valued …
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Ken Larsen. Fluorite is calcium fluoride and crystallizes in the cubic system, forming most often as cubes and octahedra. Sometimes fluorite is faceted as gemstones, but mainly …
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Fluorite, also known as fluorspar, is a widely occurring mineral found in various geological settings around the world. It is a colorful and highly valued mineral due to its vibrant fluorescence when exposed to ultraviolet light, which gives it its name. Fluorite has a fascinating range of physical properties and has numerous industrial, scientific, …
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The Mineral diamond. Diamond has many unequaled qualities and is very unique among minerals. It is the hardest known substance, it is the greatest conductor of heat, it has the highest melting point of any substance (7362° F or 4090° C), and it has the highest refractive index of any natural mineral. Diamond is number 10 on the Mohs scale ...
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The Mineral cyanotrichite. Cyanotrichite is an attractive blue mineral with very characteristic radiating needle aggregates. It is a fragile mineral, and handling should be avoided, for even a slight touch can damage a crystal grouping. Cyanotrichite crystals will rub off and leave a blue residue of tiny crystals on a surface if handled.
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Scapolite forms as an alteration mineral of the feldspar s. It can form in two entirely different and unrelated habits, as large and stocky white, opaque crystals, and as prismatic, completely transparent gemmy crystals in elongated form. For additional information, see the gemstone section on Scapolite. Within the series, sodium and calcium ...
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Elbaite is form of Tourmaline used as a gemstone. Its popularity has greatly increased since the 1990's, and this has also been reflected in the astronomical prices demanded from the finest Elbaite. Elbaite Tourmaline is cut into all forms and styles for jewelry use. All the colors of Elbaite, especially multicolored gems, are used in jewelry.
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Rhodochrosite is a very aesthetic and desirable mineral; its deep red and hot pink crystals are highly sought after. Of special note are the beautiful, intensely colored rhombohedral crystals that have come from the Sweet Home Mine in Colorado. This mine provided a fascinating discovery in the 1960's of some of the largest and most stunning ...
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The Mineral barite. Barite is well-known for its great range of colors and varied crystal habits. It is easily identifiable by its heavy weight, since most similar minerals are much lighter. Controversy exists regarding the spelling of Barite. This mineral has always been spelled "Barite" in the United States.
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The Mineral boulangerite. Boulangerite typically forms in a unique crystal habit of fine acicular crystals that appear as woven, hair-like fibers. The thin fibers, which can be very thick covering an entire specimen, or thinly spaced on a matrix, are often bent or interwoven due to their flexibility. Boulangerite also forms as dense, hairy ...
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A blue variety of fluorite is found exclusively in England. In the United States, fluorite is mainly found in Kentucky, Illinois, Missouri, and Colorado. Also, it is interesting to note that fluorite is actually considered Illinois' state mineral, and it has been mined in Southeastern Illinois since the early 1800s.
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Detailed description, properties, and locality information guide about the mineral fluorite.
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Calaverite is an ore of gold. It is also rare collector's mineral, with special value due to its gold content. The bulk of collector's specimens of Calaverite are from several of the mines in the Cripple Creek District, Teller Co., Colorado, including the Ajax/Cresson, Doctor, El Paso, Mary McKinney, Molly Kathleen, Portland, and Vindicator Mines.
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Rhodonite is a popular mineral among collectors. When it forms in large crystals or with a deep red color it is extremely sought after by collectors and can command very high prices. Rhodonite is also a minor gemstone, being cut and polished into cabochon s, beads, and other ornamental objects. Rhodonite is also a minor ore of the element ...
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Fluorite typically glows a blue-violet color under shortwave and longwave light. Some specimens are known to glow a cream or white color. Many specimens do not fluoresce. Fluorescence in fluorite is thought to be …
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The Mineral millerite. Millerite is known for its interesting crystal habit of slender brassy crystal growths and hair-like tufts. It frequently forms inside geode s and vug s where it has the room to develop its interesting crystals. Millerite was named in honor of William Hallowes Miller (1801 – 1880), a prominent Welsh mineralogist ...
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fluorite, common halide mineral, calcium fluoride (CaF 2 ), which is the principal fluorine mineral. It is usually quite pure, but as much as 20 percent yttrium or cerium may replace calcium. Fluorite occurs …
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Malachite is a popular mineral with its intense green color and beautiful banded masses. The banded specimens are formed by massive, botryoidal, reniform, and especially stalactitic Malachite that are dense intergrowths of tiny, fibrous needles. Dense banded specimens are often sliced and polished to bring out their beautiful coloring. The bands …
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Thomsonite is an uncommon and desirable member of the zeolite group, forming in unique and interesting crystal aggregates. In 1997, the Zeolite Subcommittee of the IMA divided this mineral into two individual sub-species, thereby regarding Thomsonite as a series of two members. The series is defined by calcium and strontium end member s.
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fluorite, common halide mineral, calcium fluoride (CaF 2), which is the principal fluorine mineral. It is usually quite pure, but as much as 20 percent yttrium or cerium may replace calcium. Fluorite …
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The Mineral amethyst. Amethyst is a well known mineral and gemstone. It is the purple variety of the mineral Quartz, and its most valuable and prized variety. Its name derives from the Greek "amethystos", which means "not drunken", as Amethyst in antiquity was thought to ward off drunkenness. The color of some Amethyst specimens from certain ...
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The Mineral fluorite. Fluorite is a very popular mineral, and it naturally occurs in all colors of the spectrum. It is one of the most varied colored minerals in the mineral kingdom, and the colors may be very intense and almost electric. Pure Fluorite is colorless; the color …
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Columbite is the niobium-rich member, and Tantalite is the tantalum-rich member. Columbite is named after its niobium content, which was previous known as columbium prior to its renaming. Columbite is the most important mineral containing the rare element niobium and is its main ore. The name Columbite has been discredited by the IMA, with …
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The Mineral galena. Galena is the most common mineral containing lead, and has been well-known throughout the centuries. It is often well crystallized and forms in many interesting and distinct crystal shapes. Some cubic crystals have their edges cut by the partial octahedral growth, some octahedral crystals have their points flattened by cubic ...
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