pectolite


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Related to pectolite: Riebeckite, lepidolite, richterite

pectolite

(ˈpɛktəˌlaɪt)
n
(Minerals) a whitish-grey silicate mineral of calcium and sodium
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References in periodicals archive ?
Mineralogical characteristics of copper pectolite [larimar].
From Talnakh: white pectolite "puff balls" on drusy crusts of colorless datolite; and crude, barrel-shaped black wurtzite crystals to several centimeters.
In the Caribbean, the Larimar Museum of the Dominican Republic is exhibiting an original collection of blue pectolite, a semi-precious stone found only in the earth's crust in the province of Barahona in the southwestern region of the Dominican Republic.
The mine at Asbestos produced wonderful specimens of orange grossular ("hessonite") garnets and some of the best prehnite, pectolite and vesuvianite specimens in the world.
A couple of days and several wrong turns later, they came upon the world's only known deposits of what would later be identified by Smithsonian geologists as a blue-colored incarnation of the common gray-white mineral, pectolite.
But this is one excellent lot, with miniature to small cabinet-size basalt matrix pieces whose open cavities harbor smooth white, pinkish and greenish pectolite botryoids averaging 1 cm in diameter; natrolite as jumbled groups of white, terminated crystals to 2 cm, these sparkling all over with apophyllite microcrystals and looking (my daughter says) "Christmassy"; lustrous, colorless, transparent, blocky crystals of apophyllite to 1.
The pectolite ranges in color from white to cream, pink, salmon, purple and green.
Serandite included in ussingite is Ca-enriched and close to manganoan pectolite in its chemical composition: studied samples are characterized by Mn:Ca = 1.
Divergent needles of pectolite are also commonly seen growing on the surface of the same minerals.
K-feldspar, natrolite, pectolite, aegirine, nacaphite, vitusite, fluorcaphite, belovite, umbite, lemmleinite-K, lomonosovite, lovozerite, phlogopite, sphalerite and galena.
The mineral has indeed been found there, as aggregates of crude hexagonal prisms to 3 mm in parallel growth on pectolite crystals in marble xenoliths (these having been thermally metamorphosed by syenite intrusions).
Associated minerals are: nepheline, sodalite, potassium feldspar, natrolite, pectolite, aegirine, shcherbakovite, lamprophyllite, magnesium astrophyllite, delindeite, wadeite, umbite and kostylevite.