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Diamonds occur in a variety of colors—steel gray, white, blue, yellow, orange, red, green, pink to purple, brown, and black. [2] [3] Colored diamonds contain interstitial impurities or structural defects that cause the coloration; pure diamonds are perfectly transparent and colorless.
In common English usage, purple is a range of hues of color occurring between red and blue. [1] However, the meaning of the term purple is not well defined. There is confusion about the meaning of the terms purple and violet even among native speakers of English. [2] Many native speakers of English in the United States refer to the blue ...
Diamond [a] is a gemstone formed by cutting a raw diamond. Diamonds are one of the best-known and most sought-after gems, and they have been used as decorative items since ancient times. The hardness of diamond and its high dispersion of light —giving the diamond its characteristic "fire"—make it useful for industrial applications and ...
Purple red: Old Jawa Moto motorcycles; Deutsche Bundesbahn diesel locomotives and dining cars until 1974; Trans Europ Express trains (with RAL 1001 Beige) RAL 3005: Wine red: RAL 3007: Black red: RAL 3009: Oxide red: RAL 3011: Brown red: RAL 3012: Beige red: RAL 3013: Tomato red: RAL 3014: Antique pink: RAL 3015: Light pink: RAL 3016: Coral red ...
Material properties of diamond. Burns above 700 °C in air. Diamond is the allotrope of carbon in which the carbon atoms are arranged in the specific type of cubic lattice called diamond cubic. It is a crystal that is transparent to opaque and which is generally isotropic (no or very weak birefringence ).
Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Diamond as a form of carbon is a tasteless, odourless, strong, and brittle solid that is transparent in colour, a poor conductor of electricity, and insoluble in water. Another solid form of carbon known as graphite is the ...
Chromaticity is an objective specification of the quality of a color regardless of its luminance. Chromaticity consists of two independent parameters, often specified as hue (h) and colorfulness (s), where the latter is alternatively called saturation, chroma, intensity, [1] or excitation purity. [2] [3] This number of parameters follows from ...
Cartesian chart. Euclidean plane E2. Bipolar coordinates. Biangular coordinates Two-center bipolar coordinates. Euclidean space E3. Polar spherical chart. Cylindrical chart. Elliptical cylindrical, hyperbolic cylindrical, parabolic cylindrical charts. Parabolic chart.