a group of minerals of the zeolite family consisting of a hydrous aluminum silicate of sodium and calcium
substance noun (substance and materials)
heulandites
named after H. Heuland, 19th-century English mineral collector; see -ite1
(Source: Collins Dictionary) [more]
the name of a series of tecto-silicate minerals of the zeolite group. Prior to 1997, heulandite was recognized as a mineral species, but a reclassification in 1997 by the International Mineralogical Association changed it to a series name, with the ... (40 of 463 words, 2 images)
hydrated sodium and calcium aluminosilicate mineral in the zeolite family, ... (10 of 197 words, 1 image)
a white, grey, red, or brown zeolite mineral that consists essentially of hydrated calcium aluminium silicate in the form of elongated tabular ... (22 of 290 words, 1 usage example, pronunciation)
www.collinsdictionary.com/dictionary/english/heulandite
a white or transparent, colorless mineral of the zeolite family, hydrous calcium aluminum silicate occurring in basic volcanic rocks in the form of ... (23 of 34 words, pronunciation)
a zeolite consisting of a hydrous aluminosilicate of sodium and calcium (11 of 29 words, pronunciation)
A common mineral of the zeolite group with monoclinic crystals, the most usual form being heulandite-Ca (Ca,Na)2-3Al3(Al,Si)2Si13O36·12H2O. (17 of 19 words)
A white, red, or yellow zeolite mineral, .... (8 of 18 words, pronunciation)
a semihard, lightweight, monoclinic zeolite, (Na,Ca)Al(Al,Si)SiO·24HO (6 of 17 words, pronunciation)
any of a large group of minerals consisting of hydrated aluminosilicates of sodium, potassium, calcium, and barium. They can be readily dehydrated and ... (23 of 64 words, pronunciations)
a variously colored crystalline mineral of the zeolite family, containing calcium and sodium (13 of 34 words, pronunciation)
encarta.msn.com/dictionary 1861617728/definition.html [offline]
First use: 19th century
Origin: named after H. Heuland, 19th-century English mineral collector; see -ite1
www.collinsdictionary.com/dictionary/english/heulandite
Origin: Heuland + -ite after British mineral collector John Henry Heuland (1778-1856).
First use: 1822
Origin: Henry Heuland, 19th century English mineral collector
Origin: named (1822) after Henry Heuland, English mineralogist
Origin: After Henry Heuland, 19th-century British mineralogist.
First use: Early 19th century
Origin: After H. Heuland (1777-1856), British mineralogist
encarta.msn.com/dictionary 1861617728/definition.html [offline]
Audio: British English pronunciation of "heulandite"
www.collinsdictionary.com/dictionary/english/heulandite
Audio: North American pronunciation of "heulandite"
www.merriam-webster.com/audio.php file=heulan01 word=heulandite
Page last updated: 2013-01-01