from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A white or yellow lustrous zeolite mineral, essentially (Ca,Na)2Al2Si7O18·7H2O.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A tectosilicate zeolite mineral consisting of hydrated calcium aluminium silicate, common in volcanic rocks.
from the GNU version of the Collaborative International Dictionary of English
- n. A common mineral of the zeolite family, a hydrous silicate of alumina and lime, usually occurring in sheaflike aggregations of crystals, also in radiated masses. It is of a white or yellowish color, with pearly luster on the cleavage surface. Called also desmine.
from The Century Dictionary and Cyclopedia
- n. A common zeolitic mineral, usually occurring in radiated or sheaf-like tufts of crystals having a pearly luster on the surface of cleavage.
- n. The mineral heulandite.
The crystals measure up to a yard across, and are rhombohedral or scalenohedral in habit; their faces are usually dull and corroded or coated with stilbite.
Heulandite is distinguished from stilbite by its crystals and perfect solubility; from apopholite by form of crystals.
Natrolite resembles stilbite, but may be distinguished by gelatinizing readily with hydrochloric acid and by not intumescing when heated before the blowpipe; from the other minerals by the form of the crystals and their setting, also the locality in the tunnel in which it was found.
A little stilbite may often be found on the dumps.
Grand Marrias (now near Fort Wilkins) we obtained from the shore of the inner bay, agates, stilbite, and smoky quartz, &c.
At the _Grand Marrias_ (now near Fort Wilkins) we obtained from the shore of the inner bay, agates, stilbite, and smoky quartz, &c.