Chert is composed of microcrystalline silica, and is primarily derived from the silica exoskeletons of tiny marine organisms (diatoms and radiolaria), and by precipitation from ocean water.
Chert is actually not a mineral. Chert is a type of sedimentary rock that is made up of many minerals. It is composed mainly of the minerals chalcedony and quartz.
Chert is NOT a metamorphic rock.
Chert has no streak, it is too hard.
Chert has no streak, it is too hard.
Chert is generally darker, and less pure.
It is not uncommon to find masses and layers of chert within deposits of limestone.
No.
They are all igneous, except chert
You can find chert at daly spur just south of dillon mt.
Chert is usually found in the form of nodules or lenses in bodies of limestones or dolomites.
Chert can be used as an abrasive, used to make glass, and used to make gemstones.
Chert is the name used for many dense, hard rocks such as agate (the banded variety), flint (results from organic matter), jasper (red variety), and chert arrowhead (used by Native Americans). Chert developed from microcrystalline quartz and silica organisms.