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Jasper, an aggregate of microgranular quartz and/or cryptocrystalline chalcedony and other mineral phases, [1] [2] is an opaque, [3] impure variety of silica, usually red, yellow, brown or green in color; and rarely blue. The common red color is due to iron(III) inclusions. Jasper breaks with a smooth surface and is used for ornamentation or as ...
The red jasper may resemble spots of blood, hence the name bloodstone. Other colors of chalcedony may also occur in Indian bloodstone, such as white, yellow, or blue. This semiprecious stone should not be confused with other ornamental stones that contain red jasper.
It is the most common source ore for refining elemental mercury and is the historic source for the brilliant red or scarlet pigment termed vermilion and associated red mercury pigments. Cinnabar generally occurs as a vein-filling mineral associated with volcanic activity and alkaline hot springs .
Jasper is a variety of chert formed as primary deposits, found in or in connection with magmatic formations, and owes its typical red color to hematite inclusions. Jasper frequently also occurs in black, yellow and green, depending on the type of iron it contains. Jasper is usually opaque to near opaque. [65]
In March, a mother was horrified to find a pedophile symbol on a toy she bought for her daughter. Although the symbol was not intentionally placed on the toy by the company who manufactured the ...
Here's a look at the odds for each of the four first-round games and the national title odds for every team in the playoff. The winner of Indiana at Notre Dame will play Georgia in the Sugar Bowl ...
The color jasper is named for red jasper, the most commonly known form of jasper; however, as with many gemstones, jasper can be found in many colors, from yellow to brown and even green. The color was formulated by Crayola in 1994 as part of their Gem Tones crayon set.
The Birds’ claim to be the First Family of UK Sports: From four brothers who played for the Wildcats, three — Jerry, Calvin and Rodger — have jerseys retired by the University of Kentucky ...