Natrolite is a tectosilicate mineral species belonging to the zeolite group. It is a hydrated sodium and aluminium silicate with the formula Na2Al2Si3O10·2H2O.[4] The type locality is Hohentwiel, Hegau, Germany.[3]
It was named natrolite by Martin Heinrich Klaproth in 1803.[3] The name is derived from natron (νατρών), the Greek word for soda, in reference to the sodium content, and lithos (λίθος), meaning stone. Needle stone or needle-zeolite are other informal names, alluding to the common acicular habit of the crystals, which are often very slender and are aggregated in divergent tufts. The crystals are frequently epitaxial overgrowths of natrolite, mesolite, and gonnardite in various orders.[2]
^Warr, L. N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
^ abR. Tschernich, Zeolites of the World, Geoscience Press, 1992.
^ abcM. H. Klapoth, XV. Chemische Untersuchung des Natroliths, Ges Naturforsch Freunde Berlin Neue Schriften, V 4, pp 243-248, 1803.
^ abD. S. Coombs, Recommended Nomenclature for Zeolite Minerals: Report of the Subcommittee on Zeolites of the International Mineralogical Association, Commission on New Minerals and Mineral Names, The Canadian Mineralogist, Vol. 35, pp. 1571-1606, 1997.
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Natrolite is a tectosilicate mineral species belonging to the zeolite group. It is a hydrated sodium and aluminium silicate with the formula Na2Al2Si3O10·2H2O...
minerals that make up its host rock. Frequently associated minerals include: natrolite, neptunite, joaquinite, serpentine and albite. Benitoite is a rare mineral...
heulandite, natrolite, phillipsite, and stilbite. An example of the mineral formula of a zeolite is: Na2Al2Si3O10·2H2O, the formula for natrolite. Natural...
It has nearly the same angles between the crystal faces as does natrolite, but natrolite is orthorhombic and scolecite is monoclinic. The etched figures...
Common habits include acicular, which describes needlelike crystals as in natrolite, bladed, dendritic (tree-pattern, common in native copper), equant, which...
diaspore in bauxite deposits; and with nepheline, gibbsite, diaspore, natrolite and analcime in nepheline pegmatites. Industrially, it is used as an inexpensive...
of silica-undersaturated environments, namely leucite, cancrinite and natrolite. Other associated minerals include nepheline, titanian andradite, aegirine...
the Narssârssuk pegmatite of West Greenland. It is also found within natrolite veins in glaucophane schist within serpentinite in San Benito County,...
Na2Ca2(Al2Si3O10)3·8H2O. It is a member of the zeolite group and is closely related to natrolite which it also resembles in appearance. Mesolite crystallizes in the orthorhombic...
presently active. Primary mineralogy is highly variable, but may include natrolite, sodalite, apatite, magnetite, baryte, fluorite, ancylite group minerals...
Gonnardite is a comparatively rare, fibrous zeolite, natrolite subgroup. Older papers claim that a complete solid solution exists between tetranatrolite...
Name Symbol Name Symbol Name Symbol Name Symbol Nabalamprophyllite Nlmp Natrolite Ntr Nickel Ni Nitscheite Nih Nabaphite Nbh Natromarkeyite Nmk Nickelaustinite...
nβ=1.738 nγ=1.747 and it has a 2V optical angle of 62°. It occurs with natrolite in alkali pegmatites. It was discovered in 1972 in the Korgeredabinsh...
microcline, natrolite, sphalerite and vanadinite. At the same locality it was found in alkaline pegmatite veins associated with clinobarylite, natrolite, aegirine...
domains are observed. Nepheline generally shows partial alteration into natrolite and cancrinite. The clinopyroxene is sodic whose composition varies from...
nepheline or leucite, are often rich in zeolites, such as analcite, prehnite, natrolite, scolecite, chabazite, heulandite, etc. Ultramafic tuffs are extremely...
immersed in acid. The mineral is prone to alteration to zeolites (especially natrolite), sodalite, kaolin, or compact muscovite. The aluminosilicate backbone...
strontium, beryllium and boron in the Karelia occurrence and in vugs with natrolite and thomsonite in Norway. Warr, L.N. (2021). "IMA–CNMNC approved mineral...
to 25 cm. These specimens are associated with serandite, aegyrine and natrolite, and can be found at Mont Saint-Hilaire, Quebec. Of the pinkish-white...
various mafic rocks. It occurs associated with thomsonite, analcime, natrolite, harmotome, brewsterite, prehnite and calcite. The mineral was first reported...
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