chert

unzählbar

A hard, dense, sedimentary rock composed of microcrystalline quartz, a variety of silica.

ruТвёрдая, плотная осадочная порода, состоящая из микрокристаллического кварца, разновидности кремнезёма.esRoca sedimentaria dura y densa compuesta de cuarzo microcristalino, una variedad de sílice. Se emplea como término geológico para designar sílex o pedernal de grano fino.frRoche sédimentaire dure et dense composée de quartz microcristallin, une variété de silice.deHartes, dichtes Sedimentgestein, das überwiegend aus mikrokristallinem Quarz besteht; eine Varietät des Siliziumdioxids. Wird auch als Feuerstein oder Hornstein bezeichnet.ptRocha sedimentar dura e densa, composta de quartzo microcristalino, uma variedade de sílica; também se refere a rochas silicosas semelhantes.zh一种坚硬、致密的沉积岩，主要由微晶石英组成，是二氧化硅的一种形态。arصخر رسوبي صلب كثيف يتكون أساساً من الكوارتز المجهري، وهو أحد أنواع السيليكا.

1. Microcrystalline quartz rock C1 formal scientific

   A hard, dense sedimentary rock composed of microcrystalline quartz, often found in nodules or layers within limestone.

   • The geologist identified the sample as chert due to its conchoidal fracture.
   • Ancient toolmakers used chert to create sharp-edged blades and arrowheads.
   • Chert nodules are commonly found embedded in chalk deposits.

   ruКременьeschert (sílex)frchert (roche siliceuse)deHornsteinptChertezh燧石arصوان

   Synonyme: flint

• cherts plural form
• cherts' possessive plural form
• chert's possessive singular form