Definitions
from The Century Dictionary.
- noun A black to dark-green mineral with micaceous cleavage, occurring in tapering hexagonal prisms or fibrous diverging groups; a hydrous silicate of iron and manganese, found at localities in Bohemia and in Cornwall, England.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Min.) A mineral consisting principally of silicate of iron, and crystallizing in hexagonal prisms with perfect basal cleavage; -- so named from the Swedish mineralogist Cronstedt.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun mineralogy A trigonal-ditrigonal pyramidal
mineral containinghydrogen ,iron ,oxygen , andsilicon .
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
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ruzuzu commented on the word cronstedtite
"A black to dark-green mineral with micaceous cleavage, occurring in tapering hexagonal prisms or fibrous diverging groups; a hydrous silicate of iron and manganese, found at localities in Bohemia and in Cornwall, England."
--CD&C
March 19, 2012