Search results
Results From The WOW.Com Content Network
Although helenite and obsidian are both forms of glass, helenite differs from obsidian in that it is man-made. The stone has been marketed by the jewelry industry because of its emerald-like color, good refractive index, although its durability is low. It has a hardness of just 5 to 5 ½ and chips about as easily as obsidian or window glass.
Obsidian is mineral-like, but not a true mineral because, as a glass, it is not crystalline; in addition, its composition is too variable to be classified as a mineral. It is sometimes classified as a mineraloid. [20] Though obsidian is usually dark in color, similar to mafic rocks such as basalt, the
Brown colors are mainly dark orange and dark red colors—warm colors on the warm color side of the color wheel, while blue-gray (livid) colors are mainly dark blue and dark azure colors—colors on the opposite side of the color wheel—cool colors on the cool color side of the color wheel. Alternate names are blue-gray (American English) or ...
a Japanese exotic, high-end steel made by Hitachi. The "Blue" refers to, not the color of the steel itself, but the color of the paper in which the raw steel comes wrapped. Aogami/Blue-Num-1 A steel with higher tensile strength and sharpening ability than blue-2. Aogami/Blue-Num-2 A steel with higher toughness and wear resistance than blue-1.
The color is caused by the size and dispersion of gold particles. Ruby gold glass is usually made of lead glass with added tin. Silver compounds such as silver nitrate and silver halides can produce a range of colors from orange-red to yellow. The way the glass is heated and cooled can significantly affect the colors produced by these compounds.
Obsidian (Transformers), a Transformers character; Obsidian, a character in the animated TV series Trollz; Obsidian, a character in the Cartoon Network series Steven Universe; Obsidian, a synonym for dragonglass, which kills White Walkers and their soldiers in Game of Thrones; Obsidian Order, the fictional Cardassian intelligence agency from ...
Their colors range from colorless and transparent to yellowish and pale brown. They frequently contain bubbles and lechatelierite inclusions. Microtektites are typically found in deep-sea sediments that are of the same ages as those of the four known strewn fields.
YInMn Blue is an inorganic pigment with an intense blue color that was discovered by Mas Subramanian and his graduate student, Andrew Smith, at Oregon State University in 2009. [20] [21] It has been used in water, oil, and acrylic paints from paint vendors. The name "YInMn" comes from the chemical symbols for yttrium, indium and manganese. The ...