zeolite

1. n. A term now used to designate any one of a family of minerals, hydrous silicates of alumina, with lime, soda, potash, or rarely baryta. Here are included natrolite, stilbite, analcime, chabazite, thomsonite, heulandite, and others. These species occur of secondary origin in the cavities of amygdaloid, basalt, and lava, also, less frequently, in granite and gneiss. So called because many of these species intumesce before the blowpipe. Source: opted

2. n. any of a family of glassy minerals analogous to feldspar containing hydrated aluminum silicates of calcium or sodium or potassium; formed in cavities in lava flows and in plutonic rocks Source: wordnet

3. A term now used to designate any one of a family of minerals, hydrous silicates of alumina, with lime, soda, potash, or rarely baryta. Here are included natrolite, stilbite, analcime, chabazite, thomsonite, heulandite, and others. These species occur of secondary origin in the cavities of amygdaloid, basalt, and lava, also, less frequently, in granite and gneiss. So called because many of these species intumesce before the blowpipe. Needle zeolite, needlestone; natrolite. Source: webster

4. A term now used to designate any one of a family of minerals,hydrous silicates of alumina, with lime, soda, potash, or rarelybaryta. Here are included natrolite, stilbite, analcime, chabazite,thomsonite, heulandite, and others. These species occur of secondaryorigin in the cavities of amygdaloid, basalt, and lava, also, lessfrequently, in granite and gneiss. So called because many of thesespecies intumesce before the blowpipe. Needle zeolite, needlestone;natrolite. Source: adambom

5. n:100 n. any of a family of glassy minerals analogous to feldspar containing hydrated aluminum silicates of calcium or sodium or potassium; formed in cavities in lava flows and in plutonic rocks Source: ecdict

Thesaurus links

From the definitions

Explore more