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69 relations: Alexander II of Russia, Aluminate, Aluminium, Andhra Pradesh, Aquilegia canadensis, Beryl, Beryllium, Brazil, Cabochon, Chatoyancy, Chromium, Chrysoberyl, Color temperature, Color vision, Corundum, Country rock (geology), Crust (geology), Crystal twinning, Crystallization, Dolomite, Emerald, Feldspar, Felsic, Garnet, Gemology, Greek language, Hermann–Mauguin notation, Hexagon, Incandescent light bulb, India, List of minerals, Lithium, Madagascar, Mafic, Magma, Metamerism (color), Mica, Mohs scale of mineral hardness, Nanometre, Nils Gustaf Nordenskiöld, Niobium, Olivine, Orthorhombic crystal system, Oxide minerals, Oxygen, Pegmatite, Peridot, Placer deposit, Pleochroism, Polarization (waves), ..., Prince Arthur, Duke of Connaught and Strathearn, Quartz, Raspberry, Rutile, Sapphire, Scapolite, Schist, Spinel, Sri Lanka, Synthetic alexandrite, Topaz, Tourmaline, Transparency and translucency, Tsar, Ultramafic rock, Ural Mountains, Vanadium, Victorian era, Wavelength. Expand index (19 more) »
Alexander II of Russia
Alexander II (p; 29 April 1818 – 13 March 1881) was the Emperor of Russia from the 2nd March 1855 until his assassination on 13 March 1881.
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Aluminate
In chemistry aluminate is a compound containing an oxyanion of aluminium, such as sodium aluminate.
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Aluminium
Aluminium or aluminum is a chemical element with symbol Al and atomic number 13.
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Andhra Pradesh
Andhra Pradesh is one of the 29 states of India.
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Aquilegia canadensis
Aquilegia canadensis (Canadian or Canada columbine, eastern red columbine, wild columbine) is an herbaceous perennial native to woodland and rocky slopes in eastern North America, prized for its red and yellow flowers.
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Beryl
Beryl is a mineral composed of beryllium aluminium cyclosilicate with the chemical formula Be3Al2(SiO3)6.
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Beryllium
Beryllium is a chemical element with symbol Be and atomic number 4.
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Brazil
Brazil (Brasil), officially the Federative Republic of Brazil (República Federativa do Brasil), is the largest country in both South America and Latin America.
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Cabochon
A cabochon, from the Middle French word caboche (meaning "head"), is a gemstone which has been shaped and polished as opposed to faceted.
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Chatoyancy
In gemology, chatoyancy, or chatoyance or cat's eye effect, is an optical reflectance effect seen in certain gemstones.
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Chromium
Chromium is a chemical element with symbol Cr and atomic number 24.
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Chrysoberyl
The mineral or gemstone chrysoberyl is an aluminate of beryllium with the formula BeAl2O4.
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Color temperature
The color temperature of a light source is the temperature of an ideal black-body radiator that radiates light of a color comparable to that of the light source.
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Color vision
Color vision is the ability of an organism or machine to distinguish objects based on the wavelengths (or frequencies) of the light they reflect, emit, or transmit.
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Corundum
Corundum is a crystalline form of aluminium oxide typically containing traces of iron, titanium, vanadium and chromium.
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Country rock (geology)
Country rock is a geological term meaning the rock native to an area.
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Crust (geology)
In geology, the crust is the outermost solid shell of a rocky planet, dwarf planet, or natural satellite.
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Crystal twinning
Crystal twinning occurs when two separate crystals share some of the same crystal lattice points in a symmetrical manner.
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Crystallization
Crystallization is the (natural or artificial) process by which a solid forms, where the atoms or molecules are highly organized into a structure known as a crystal.
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Dolomite
Dolomite is an anhydrous carbonate mineral composed of calcium magnesium carbonate, ideally The term is also used for a sedimentary carbonate rock composed mostly of the mineral dolomite.
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Emerald
Emerald is a precious gemstone and a variety of the mineral beryl (Be3Al2(SiO3)6) colored green by trace amounts of chromium and sometimes vanadium.
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Feldspar
Feldspars (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8) are a group of rock-forming tectosilicate minerals that make up about 41% of the Earth's continental crust by weight.
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Felsic
In geology, felsic refers to igneous rocks that are relatively rich in elements that form feldspar and quartz.
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Garnet
Garnets are a group of silicate minerals that have been used since the Bronze Age as gemstones and abrasives.
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Gemology
Gemology or gemmology is the science dealing with natural and artificial gemstone materials.
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Greek language
Greek (Modern Greek: ελληνικά, elliniká, "Greek", ελληνική γλώσσα, ellinikí glóssa, "Greek language") is an independent branch of the Indo-European family of languages, native to Greece and other parts of the Eastern Mediterranean and the Black Sea.
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Hermann–Mauguin notation
In geometry, Hermann–Mauguin notation is used to represent the symmetry elements in point groups, plane groups and space groups.
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Hexagon
In geometry, a hexagon (from Greek ἕξ hex, "six" and γωνία, gonía, "corner, angle") is a six-sided polygon or 6-gon.
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Incandescent light bulb
An incandescent light bulb, incandescent lamp or incandescent light globe is an electric light with a wire filament heated to such a high temperature that it glows with visible light (incandescence).
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India
India (IAST), also called the Republic of India (IAST), is a country in South Asia.
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List of minerals
This is a list of minerals for which there are articles on Wikipedia.
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Lithium
Lithium (from lit) is a chemical element with symbol Li and atomic number 3.
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Madagascar
Madagascar (Madagasikara), officially the Republic of Madagascar (Repoblikan'i Madagasikara; République de Madagascar), and previously known as the Malagasy Republic, is an island country in the Indian Ocean, off the coast of East Africa.
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Mafic
Mafic is an adjective describing a silicate mineral or igneous rock that is rich in magnesium and iron, and is thus a portmanteau of magnesium and '''f'''err'''ic'''.
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Magma
Magma (from Ancient Greek μάγμα (mágma) meaning "thick unguent") is a mixture of molten or semi-molten rock, volatiles and solids that is found beneath the surface of the Earth, and is expected to exist on other terrestrial planets and some natural satellites.
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Metamerism (color)
In colorimetry, metamerism is a perceived matching of the colors with different (nonmatching) spectral power distributions.
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Mica
The mica group of sheet silicate (phyllosilicate) minerals includes several closely related materials having nearly perfect basal cleavage.
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Mohs scale of mineral hardness
The Mohs scale of mineral hardness is a qualitative ordinal scale characterizing scratch resistance of various minerals through the ability of harder material to scratch softer material.
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Nanometre
The nanometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: nm) or nanometer (American spelling) is a unit of length in the metric system, equal to one billionth (short scale) of a metre (m).
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Nils Gustaf Nordenskiöld
Nils Gustaf Nordenskiöld (October 12, 1792, Mäntsälä – February 2, 1866) was a mineralogist and a traveller.
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Niobium
Niobium, formerly known as columbium, is a chemical element with symbol Nb (formerly Cb) and atomic number 41.
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Olivine
The mineral olivine is a magnesium iron silicate with the formula (Mg2+, Fe2+)2SiO4.
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Orthorhombic crystal system
In crystallography, the orthorhombic crystal system is one of the 7 crystal systems.
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Oxide minerals
The oxide mineral class includes those minerals in which the oxide anion (O2−) is bonded to one or more metal ions.
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Oxygen
Oxygen is a chemical element with symbol O and atomic number 8.
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Pegmatite
A pegmatite is a holocrystalline, intrusive igneous rock composed of interlocking phaneritic crystals usually larger than 2.5 cm in size (1 in); such rocks are referred to as pegmatitic.
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Peridot
Peridot is gem-quality olivine, which is a silicate mineral with the formula of (Mg, Fe)2SiO4.
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Placer deposit
In geology, a placer deposit or placer is an accumulation of valuable minerals formed by gravity separation from a specific source rock during sedimentary processes.
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Pleochroism
Pleochroism (from Greek πλέων, pléōn, "more" and χρῶμα, khrôma, "color") is an optical phenomenon in which a substance has different colors when observed at different angles, especially with polarized light.
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Polarization (waves)
Polarization (also polarisation) is a property applying to transverse waves that specifies the geometrical orientation of the oscillations.
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Prince Arthur, Duke of Connaught and Strathearn
Prince Arthur, Duke of Connaught and Strathearn, (Arthur William Patrick Albert; 1 May 185016 January 1942) was a member of the British Royal Family who served as the Governor General of Canada, the tenth since Canadian Confederation.
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Quartz
Quartz is a mineral composed of silicon and oxygen atoms in a continuous framework of SiO4 silicon–oxygen tetrahedra, with each oxygen being shared between two tetrahedra, giving an overall chemical formula of SiO2.
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Raspberry
The raspberry is the edible fruit of a multitude of plant species in the genus Rubus of the rose family, most of which are in the subgenus Idaeobatus; the name also applies to these plants themselves.
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Rutile
Rutile is a mineral composed primarily of titanium dioxide (TiO2).
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Sapphire
Sapphire is a precious gemstone, a variety of the mineral corundum, an aluminium oxide.
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Scapolite
The scapolites (Gr. σκάπος, rod, and λίθος, stone) are a group of rock-forming silicate minerals composed of aluminium, calcium, and sodium silicate with chlorine, carbonate and sulfate.
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Schist
Schist (pronounced) is a medium-grade metamorphic rock with medium to large, flat, sheet-like grains in a preferred orientation (nearby grains are roughly parallel).
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Spinel
Spinel is the magnesium aluminium member of the larger spinel group of minerals.
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Sri Lanka
Sri Lanka (Sinhala: ශ්රී ලංකා; Tamil: இலங்கை Ilaṅkai), officially the Democratic Socialist Republic of Sri Lanka, is an island country in South Asia, located in the Indian Ocean to the southwest of the Bay of Bengal and to the southeast of the Arabian Sea.
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Synthetic alexandrite
Synthetic alexandrite is an artificially-grown variety of chrysoberyl crystal, composed of beryllium aluminum oxide (BeAl2O4).
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Topaz
Topaz is a silicate mineral of aluminium and fluorine with the chemical formula Al2SiO4(F, OH)2.
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Tourmaline
Tourmaline is a crystalline boron silicate mineral compounded with elements such as aluminium, iron, magnesium, sodium, lithium, or potassium.
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Transparency and translucency
In the field of optics, transparency (also called pellucidity or diaphaneity) is the physical property of allowing light to pass through the material without being scattered.
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Tsar
Tsar (Old Bulgarian / Old Church Slavonic: ц︢рь or цар, цaрь), also spelled csar, or czar, is a title used to designate East and South Slavic monarchs or supreme rulers of Eastern Europe.
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Ultramafic rock
Ultramafic (also referred to as ultrabasic rocks, although the terms are not wholly equivalent) are igneous and meta-igneous rocks with a very low silica content (less than 45%), generally >18% MgO, high FeO, low potassium, and are composed of usually greater than 90% mafic minerals (dark colored, high magnesium and iron content).
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Ural Mountains
The Ural Mountains (p), or simply the Urals, are a mountain range that runs approximately from north to south through western Russia, from the coast of the Arctic Ocean to the Ural River and northwestern Kazakhstan.
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Vanadium
Vanadium is a chemical element with symbol V and atomic number 23.
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Victorian era
In the history of the United Kingdom, the Victorian era was the period of Queen Victoria's reign, from 20 June 1837 until her death on 22 January 1901.
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Wavelength
In physics, the wavelength is the spatial period of a periodic wave—the distance over which the wave's shape repeats.
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Redirects here:
Al2BeO4, Al6BeO10, Alaxandrite, Alexandrite, BeAl2O4, Beryllium aluminate, Beryllium aluminium oxide, Beryllium aluminum oxide, Chatoyant chrysoberyl, Chrysoberil, Chrysoberyl-cat eye, Cymophane, Russian Alexandrite Gemstones.
References
[1] https://en.wikipedia.org/wiki/Chrysoberyl
