from The Century Dictionary.
- noun A silicate of aluminium and magnesium, MgAl2SiO6, occurring in from colorless to white fibrous or columnar aggregates: found at Fiskernäs, Greenland. Prismatine, from Waldheim, Saxony, is a similar mineral.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun mineralogy A rare
boro- silicate mineralwith the chemical formula (Mg,Fe2+)4(Al,Fe3+)6(SiO4,BO4)5(O,OH)2, some varieties of which are valued as gemstones.
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Andreas Nikolaus Kornerup (1857–1883), Danish geologist + -ite.
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