Gomed - Jasper

विकिपीडिया कडल्यान
हुपून वचात: दिशा-नियंत्रण, सोद
Brecciated red jasper tumbled smooth, 1 in (2.5 cm)

Gomed - Jasper[बदल]

Gomed - mhonnge Inglez bhaxen ' Jasper ' ani Portuguez bhaxen Jasper

Jasper outcrop in the Bucegi Mountains


Jasper, an aggregate of microquartz and/or 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. The mineral aggregate breaks with a smooth surface and is used for ornamentation or as a gemstone. It can be highly polished and is used for vases, seals, and snuff boxes. The specific gravity of jasper is typically 2.5 to 2.9.[4] Along with Heliotrope (bloodstone), jasper (green with red spots) is one of the traditional birthstones for March. Jaspilite is a banded iron formation rock that often has distinctive bands of jasper.

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