Tripolitic chert (or tripoli) is a light-colored porous friable siliceous (largely chalcedonic) sedimentary rock, which results from the weathering (decalcification) of chert or siliceous …

What is Chert? Chert is a sedimentary rock composed of microcrystalline or cryptocrystalline quartz, the mineral form of silicon dioxide (SiO 2). It occurs as nodules, concretionary masses, …

Apr 14, 2018 · Chert is a fine-grained sedimentary rock composed of quartz (SiO2) that is microcrystalline or cryptocrystalline quartz. It is usually organic rock but also occur …

Chert is a biochemical sedimentary rock made from microcrystalline quartz. It is very hard – registering a 7 on the Mohs hardness scale, and displays conchoidal fracturing.

Chert, a sedimentary rock primarily composed of microcrystalline quartz (silicon dioxide, SiO₂), is recognized for its durability and distinctive conchoidal fracture, properties historically crucial for …

Sep 8, 2012 · Chert is a hard and compact sedimentary rock made mostly of tiny quartz crystals. It commonly occurs in carbonate rocks, either as nodules or as layered deposits known as …

Chert and flint, very fine-grained quartz (q.v.), a silica mineral with minor impurities. Several varieties are included under the general term chert: jasper, chalcedony, agate (qq.v.), flint, …

What Is Chert? Definition: Chert is a hard, microcrystalline form of quartz (SiO₂). The crystals are too small to see without high magnification, giving it a smooth, dense texture.

Chert is a hard, fine-grained sedimentary rock composed of microcrystalline or cryptocrystalline quartz, the mineral form of silicon dioxide (SiO2). Chert is ch...

Chert is a fine-grained, silica-rich, microcrystalline, cryptocrystalline or microfibrous sedimentary rock that may contain small fossils.