collophane

col·lo·phane

English syllables. 2014.

Look at other dictionaries:

  • collophane — /kol euh fayn /, n. Mineral. a massive, cryptocrystalline variety of apatite that is the principal component of phosphate rock and fossil bone. Also, collophanite /keuh lof euh nuyt , kol euh feuh /. [1915 20; < G Kollophan, equiv. to Gk koll(a)… …   Universalium

  • collophane — /ˈkɒləfeɪn/ (say koluhfayn) noun → apatite …   Australian English dictionary

  • collophane — …   Useful english dictionary

  • Phosphate minerals — ▪ Table Phosphate minerals name colour lustre Mohs hardness specific gravity amblygonite white to creamy white; slightly tinted vitreous to greasy 5½–6 3.0–3.1 apatite carbonate apatite variable, greens predominating vitreous 5 2.9–3.2… …   Universalium

  • APATITES — Phosphates de chaux naturels, Ca5(PO4)3(OH,F,Cl), les apatites sont des minéraux accessoires des roches éruptives et métamorphiques, fréquents en outre dans les gîtes phosphatés sédimentaires. Le terme, créé en 1808 par Werner, vient du grec… …   Encyclopédie Universelle

  • Apatite — Not to be confused with appetite. Apatite General Category Phosphate mineral group Chemical form …   Wikipedia

  • Phosphorite — A phosphorite or phosphate rock is a non detrital sedimentary rock which contains high amounts of phosphate bearing minerals. The phosphate content of phosphorite is at least 20% which is a large enrichment over the typical sedimentary rock… …   Wikipedia

  • Apatite — Catégorie VIII : phosphates, arséniates, vanadates[1] Apatite Québec (Xl 32cm) …   Wikipédia en Français

  • fluorapatite — /floor ap euh tuyt , flawr , flohr /, n. a crystalline mineral, Ca5(PO4)3F, formed from hydroxyapatite in the presence of fluoride, that has a hardening effect on bones and teeth. [1880 85; < G Fluorapatit; see FLUOR , APATITE] * * * ▪ mineral… …   Universalium

  • hydroxylapatite — ▪ mineral also called  hydroxyapatite        phosphate mineral, calcium hydroxide phosphate [Ca5(PO4)3OH], that forms glassy, often green crystals and masses. It is seldom pure in nature but often occurs mixed with fluorapatite, in which fluorine …   Universalium

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