heulandite
[ hyoo-luh n-dahyt ]
/ ˈhyu lənˌdaɪt /
noun
a white or transparent, colorless mineral of the zeolite family, hydrous calcium aluminum silicate, CaAl2Si7O18⋅6H2O, occurring in basic volcanic rocks in the form of crystals with a pearly luster.
Origin of heulandite
1815–25; named after Henry
Heuland, 19th-century English mineral collector; see
-ite1
Words nearby heulandite
hetp,
hettie,
hetty,
heu,
heuchera,
heulandite,
heuneburg,
heurige,
heuristic,
heuristics,
heusler alloy
Example sentences from the Web for heulandite
Isomorphous with heulandite is the strontium and barium zeolite brewsterite, named after Sir David Brewster.
Heulandite is distinguished from stilbite by its crystals and perfect solubility; from apopholite by form of crystals.
British Dictionary definitions for heulandite
heulandite
/ (ˈhjuːlənˌdaɪt) /
noun
a white, grey, red, or brown zeolite mineral that consists essentially of hydrated calcium aluminium silicate in the form of elongated tabular crystals. Formula: CaAl 2 Si 7 O 18 .6H 2 O
Word Origin for heulandite
C19: named after H.
Heuland, 19th-century English mineral collector; see
-ite
1