Agates of the World The web site describes the scientific study of agate including its aspects of its origin. The question of genesis remains largely unsolved. Chalcedony with bands is known as agate and both are forms of microcrystalline quartz found mainly as a vesicular infill in igneous rocks. To a lesser extent agate is also found in limestone and siltstone. A sample chapter describes how to make rock thin sections that reveal the mineral fibrosity when viewed under a petrological microscope Agateworld.co.uk~Site InfoWhoisTrace RouteRBL Check
