from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A white or light-colored zeolite, NaAlSi2O6·H2O, found in certain basalts.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A mineral, a sodium aluminosilicate with a chemical formula NaAlSi2O6·H2O, having a zeolite structure, found in alkaline basalts.
from the GNU version of the Collaborative International Dictionary of English
- n. A white or flesh-red mineral, of the zeolite family, occurring in isometric crystals. By friction, it acquires a weak electricity; hence its name.
The minerals referred to are analcime, chabazite, Thompsonite, and finally, the mineral which I first found in this formation, Hayesine, which is extremely rare, and of which
Nepheline, leucite, idocrase, and meionite have not yet been seen at the peak of Teneriffe; for a reddish-grey lava, which we found on the slope of Monte Verde, and which contains small microscopic crystals, appears to me to be a close mixture of basalt and analcime.
1983, Selective concentration of cesium in analcime during hydrothermal alteration, Yellowstone
Wordnik is becoming a not-for-profit! Read our announcement here.