Our electronic instruments. AMETEK is a worldwide leader in the design and manufacturing of advanced analytical, test and measurement instrumentation for the energy, aerospace, power, research, medical and industrial markets. BOTH OPERATING GROUPS OCCUPY LEADING POSITIONS IN NICHE MARKETS.
· Amazing Agate Photos. September 10, 2016. Agate is a cryptocrystalline variety of silica, chiefly chalcedony, characterised by its fineness of grain and brightness of color. Although agates may be found in various kinds of rock, they are classically associated with volcanic rocks and can be common in certain metamorphic rocks.