Monoclinic vs Heulandite - What's the difference?
monoclinic | heulandite |
(crystallography) Having three unequal axes with two perpendicular and one oblique intersections.
(mineral) A common mineral of the zeolite group with monoclinic crystals, the most usual form being heulandite-Ca (Ca]],Na)2-3Al3(Al,Si)2Si13O36·12[[water, H2O.
English eponyms