Wardite

Wardite

Wardite is a hydrous sodium aluminium phosphate hydroxide mineral with formula: NaAl3(PO4)2(OH)4·2(H2O). Wardite is of interest for its rare crystallography. It crystallizes in the tetragonal trapezohedral class and is one of only a few minerals in that class. Wardite forms vitreous green to bluish green to white to colorless crystals, masses, and fibrous encrustations. It has a Mohs hardness of 5 and a specific gravity of 2.81 - 2.87. It occurs with variscite in nodules and occurs in pegmatites and phosphate deposits through alteration of amblygonite.

Wardite was named for Henry Augustus Ward (1834-1906) of the University of Rochester in New York. It was discovered in 1896 in Clay Canyon, Fairfield, Utah County, Utah, USA. Though rare it has been reported from many locations worldwide.

ee also

*List of minerals
*List of minerals named after people

References

* [http://www.mindat.org/min-4242.html Mindat localities]
* [http://webmineral.com/data/Wardite.shtml Webmineral]
* [http://mineral.galleries.com/minerals/phosphat/wardite/wardite.htm Mineral galleries]


Wikimedia Foundation. 2010.

Игры ⚽ Нужно решить контрольную?

Look at other dictionaries:

  • Wardite — Catégorie VIII : phosphates, arséniates, vanadates[1] Wardite, Rapid Creek, Yukon, Canada …   Wikipédia en Français

  • wardite — ward·ite …   English syllables

  • wardite — ˈwȯrˌdīt noun ( s) Etymology: Henry A. Ward died 1906 American naturalist + English ite : a mineral Na4CaAl12(PO4)8(OH)18.6H2O consisting of a hydrous basic sodium, calcium, and aluminum phosphate and occurring in green concretionary masses… …   Useful english dictionary

  • Wardit — Wardit, Fundort: Rapid Creek, Distrikt Dawson Mining, Yukon , Kanada Andere Namen Soumansit (Sousmansite) Chemische Formel NaAl3[(OH)4|(PO4)2] · 2H2O …   Deutsch Wikipedia

  • Cyrilovite — General Category Phosphate mineral Chemical formula NaFe3+3(PO4)2(OH)4•2(H2O) Strunz classification 08.DL.10 …   Wikipedia

  • List of minerals U-Z (complete) — It is currently not possible to have a complete list of minerals . The International Mineralogical Association is the international group that recognises new minerals and new mineral names, however minerals discovered before 1959 did not go… …   Wikipedia

  • Turquoise — For other uses, see Turquoise (disambiguation). Turquoise Turquoise (tumble finished) one inch (25 mm) long. This pebble is greenish and therefore low grade General …   Wikipedia

  • List of minerals — This is a List of minerals for which there are Wikipedia articles. Mineral variety names and mineraloids are to be listed after the valid minerals for each letter.For a complete listing (about 4,000) of all mineral names: List of minerals… …   Wikipedia

  • Variscite — Infobox mineral name = Variscite category = mineral boxwidth = boxbgcolor = imagesize = caption = formula = AlPO4·2H2O molweight = color = Green, blue green, yellow green and rarely red habit = Encrustations and reniform masses system =… …   Wikipedia

  • List of minerals named after people — This is a list of minerals named after people. The chemical composition follows name when available.: For other lists of eponyms (names derived from people) see Lists of etymologies. : For a list of eponyms sorted by name see List of… …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”