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calcite Definition

cal·cite (kalsīt′)

noun

a soft, rhombohedral form of calcium carbonate, CaCO, found in marble, limestone, and chalk

Etymology: < L calx (see calcium) + -ite

calcite Usage Examples

Converse of subject

cement: The sandstones have more quartz and glauconite, and are only loosely cemented together by calcite.

Converse of object

  • contain: It is harder, denser, and often contains calcite.
  • deposit: Water filtering down through the rock has deposited calcite, gypsum, baryte and celestine in the cracks, sometimes as well-formed crystals.
  • show: A SEM image of one ash sample ( TES 54 ) shows platy calcite aggregating as lumps ( Fig.
  • have: Many questions remain and new ones have arisen: In how many different ways has calcite be used in the construction of visual systems?

Adjective modifier

  • white: The best bit being the river of white calcite encountered close to the end.
  • pure: Pete climbed up and put his head through the gap and reported a wall of pure white calcite.
  • ferroan: In some cases a brown marl is also present, coating the ferroan calcite or directly in contact with the bivalve shell.
  • stalagmitic: The dating of stalagmitic calcite therefore provides a valuable method for understanding cave chronologies.
  • hard: Bivalve: a group of mollusks with flattened bodies enclosed by a pair shells ( valves ) made of hard calcite.
  • more: More calcite than you can shake a very big stick at.

Modifies a noun

  • blockage: From here a tiny slot through a calcite blockage looked down into darkness.
  • crystal: You can tell calcite crystals from quartz crystals by their shape.
  • vein: The stream passage ran on ahead in the line of a calcite vein.
  • cement: Cathodoluminescence micrograph of zoned calcite cement in thin section, Pwll y Cwm Oolite, Lower Carboniferous, Baltic Quarry, South Wales.
  • marble: All selected calcite marbles have high Sr contents, averaging 2000 ppm.
  • formation: A short distance beyond, a group of calcite formations were seen.

Noun used with modifier

  • mineral: The lime mud is made of the mineral calcite.
  • speleothem: At the laboratory scale, experiments are being undertaken to identify the controls upon sulfate incorporation into speleothem calcite.
  • %: The carbonate proportion is 60 % calcite and 40 % dolomite.