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pectolite
noun
pec·to·lite
\ˈpektəˌlīt\
Definition of pectolite
-s
: a whitish or grayish monoclinic mineral NaCa2Si3O8(OH) consisting of a basic sodium calcium silicate occurring in crystal aggregates or fibrous masses (hardness 5, specific gravity 2.68–2.78)
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Origin and Etymology of pectolite
German pektolith, from Greek pēktos compacted (from pēgnynai to fix, fasten) + German -lith -lite
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