What's the difference between alabaster and calcite?

Alabaster


Definition:

  • (n.) A compact variety or sulphate of lime, or gypsum, of fine texture, and usually white and translucent, but sometimes yellow, red, or gray. It is carved into vases, mantel ornaments, etc.
  • (n.) A hard, compact variety of carbonate of lime, somewhat translucent, or of banded shades of color; stalagmite. The name is used in this sense by Pliny. It is sometimes distinguished as oriental alabaster.
  • (n.) A box or vessel for holding odoriferous ointments, etc.; -- so called from the stone of which it was originally made.

Example Sentences:

  • (1) Among other Hepworths on show is Sculpture With Profiles, a curvaceously hewn piece of white alabaster on which eyes and noses have been etched.
  • (2) It's not to do with having a perfect profile or alabaster teeth."
  • (3) Martin is a pale and slender woman in her early 20s; an alabaster saint who looks as if she would crack if you leaned on her too hard.
  • (4) One is a simple drawing of a heart, which Emin now wants to make in pink alabaster.
  • (5) He points at the rows of carved sphinxes, busts of Nefertiti and various pharaohs that line the shop, themselves symbols of Egyptian industry: black granite from Aswan, sparkling white alabaster from Luxor, or stones from Sinai, Sohag and Minya, all carved by local artisans .
  • (6) "I'm sure the first alabaster heart will be a disaster, I'd have to keep working at it, but it's about me being driven by myself," she says.
  • (7) Graham Alabaster, senior adviser, WHO-UNHabitat , Geneva, Switzerland.
  • (8) Not football: If there's a better way to pass the time before kick-off than watching a pasty, alabaster white Irishman gadding about in a boat off the coast of Spain with three elite British Olympic athletes , this minute-by-minute reporter can't think of one.
  • (9) In contrast, all 19 babies with a previous family history of melanoma had a fair complexion (blond or light brown hair and alabaster skin color) but no congenital melanocytic nevi.
  • (10) Two large mannequin suppliers said their most popular color is alabaster white, although it used to be “flesh tone” – that is, flesh-toned if you are white.

Calcite


Definition:

  • (n.) Calcium carbonate, or carbonate of lime. It is rhombohedral in its crystallization, and thus distinguished from aragonite. It includes common limestone, chalk, and marble. Called also calc-spar and calcareous spar.

Example Sentences:

  • (1) The crystallographic orientation of the calcite also appears to be independent of these fibrils.
  • (2) The calcium carbonates-calcite, aragonite, and vaterite-constitute most of the remainder of the calculi.
  • (3) Crystallographic analysis of stones from patients with nutritional pancreatitis (NP), as well as alcoholic pancreatitis (AP), revealed that the main constituent was calcite (CaCO3).
  • (4) Calcite was present in all stones, vaterite in 12%, and a central amorphous material in 30%.
  • (5) X-ray diffraction showed that calcite (CaCO3) was the major crystalline constituent of the calcareous deposits.
  • (6) When the doped glasses have been immersed in a physiological solution (199 medium), a film of calcite forms on the glass surface and this modification is related to the type of doping agent used, decisive for close linking between metal supports and the glass.
  • (7) We suggest that precipitation of calcite in the pancreatic duct occurs as the primary event in the formation of pancreatic calculi and that it may continue until the duct is completely occluded.
  • (8) 5-7): calcite and quartz are the principal components of the sinters, additional diffuse apatite lines appear in bone samples.
  • (9) These features are characteristic of sea urchin (Echinoderm) spines which are composed of ornately formed calcite crystals covered by an epithelium.
  • (10) Its absence in all analyzed invertebrate tissues (including calcitic, aragonitic, and apatitic mineral phases) indicates that matrix protein-bound gamma-carboxyglutamic acid is not obligatory for the calcification process in the invertebrates.
  • (11) Quantitatively, phosphate is by far the most important inhibitor of calcite precipitation present in saliva, suggesting that inhibition of calcite precipitation by the macromolecules may be of secondary significance.
  • (12) Plates of calcite (CaCO3) were implanted in rabbit tibiae, and their biocompatibility and bonding ability to bone were studied.
  • (13) Subsequent increase in diameter of the rod involves the radial development of irregular columns of calcite which arise from the peripheral nodules.
  • (14) The phenomenon of dissolution and recrystallisation in situ of the calcite can be a trap because it can be a reservoir for micro-organisms.
  • (15) Synechococcus strain GL24 was isolated from Fayetteville Green Lake, New York, where it has a demonstrated role in the formation of calcitic minerals.
  • (16) Pancreatic stones are observed in both humans and cattle, and are approximately 95% CaCO3 (calcite) in both species.
  • (17) Skeletal walls of more than one mineralogy have the magnesium-rich layer (calcite) surrounding the living chamber and the strontium-rich layer (aragonite) on the outside.
  • (18) Here we report on the ability of a soil bacterium to synthesize calcite in a calcium-stressed environment.
  • (19) Formation of inner protein nidus in the form of a cobweb is the first stage, then calcite is deposited on this fibrous network as tiny crystals.
  • (20) The biocompatibility of mammal bone with aragonite and calcite skeletons of aquatic invertebrates (Corals, Molluscs) led us, after animal experimentation, to implant in humans artificial dental roots derived from such invertebrates.

Words possibly related to "alabaster"