chert


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Related to chert: Dolostone, micrite

chert

 (chûrt)
n.
1. A variety of silica that contains microcrystalline quartz.
2. A siliceous rock of chalcedonic or opaline silica occurring in limestone.

[Origin unknown.]

chert′y adj.

chert

(tʃɜːt)
n
(Minerals) a microcrystalline form of silica usually occurring as bands or layers of pebbles in sedimentary rock. Formula: SiO2. Varieties include flint, lyddite (Lydian stone). Also called: hornstone
[C17: of obscure origin]
ˈcherty adj

chert

(tʃɜrt)

n.
a compact rock consisting essentially of microcrystalline quartz.
[1670–80; orig. uncertain]
chert′y, adj.

chert

(chûrt)
A hard, brittle, reddish-brown to green sedimentary rock consisting of very small crystals of quartz.

chert

A type of sedimentary rock made up of of tiny quartz crystals.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.chert - variety of silica containing microcrystalline quartz
taconite - a variety of chert containing magnetite and hematite; mined as a low-grade iron ore
silica, silicon dioxide, silicon oxide - a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechatelierite
Translations

chert

n (Min) → Kieselschiefer m, → Feuerstein m, → Hornstein m; (Build) → Gneiszuschlag(stoff) &, Feingranitzuschlag m (für Sichtbeton)
References in periodicals archive ?
That we were able to succeed in such a bleak economy, with the construction and remodeling industries severely depressed and at a time when other window manufacturers are shutting down plants or going out of business, is truly remarkable," said Steve Chert, Executive Vice President.
The evidence comes from tiny crystals of the iron-oxide mineral haematite in a 160-metre-long core section that forms part of the Marble Bar Chert.
In addressing this specific question, however, the effects of changing sea-level on the accessibility of fossiliferous chert was investigated.
IMPLICATIONS OF CARBON AND OXYGEN ISOTOPIC RATIOS IN PALEOZOIC CHERT AND HOST CARBONATE ROCKS IN THE VICINITY OF CHATTANOOGA, TENNESSEE.
For example, too early freedom from parental control has been associated with undesired adolescent behaviors, such as dropping out of school (Dornbush, Ritter, Mont-Reynaud, & Chert, 1990; Stessa & Steinberg, 1991).
The New Harmony Group is present only in the subsurface of southwestern Indiana, contains in ascending order the Grassy Knob Chert, The Backbone Limestone, and the Clear Creek Chert, and ranges in thickness from zero at its eroded limit to almost 900 feet (820 m).
The refuse heap from the mission's early days provides graphic evidence of how the natives were forced to adapt to life without their traditional obsidian and chert tools, instead using iron implements given to them by the Spanish and bottle glass.
Surveys indicate an excess of 74 million tons of Longview Limestone and other stone reserves such as Carbonate Rocks and Chert of Cooper Ridge Dolomite and Chepultepec Dolomite available for extraction.
Otra linea de evidencia que senala esta procedencia es la composicion de las areniscas, las cuales son principalmente sublitoarenitas con fragmentos liticos correspondientes a rocas metamorficas de bajo grado, chert, cuarzos retrabajados y algunos feldespatos.
Flying Swords" features Jet Li as a Ming Dynasty general battling a power-hungry eunuch played by Chert Kun.
Chert quarrying, lithic technology and a modern human burial at the palaeolithic site of Taramsa 1, Upper Egypt.