An aggregate of long, slender, crystals (i.e. Natrolite). This term is also used to describe the crystal habit of single long, thin, slender crystals.
It is an aggregate of long, slender, crystals i.e. Natrolite. The term is also used for the crystal habit of a single long, thin, slender crystals.
Needlelike, round or grooved in cross section. Parent Term: Shapes__3d Difficulty Level
narrow and long and pointed; as pine leaves
Bristly, spiny, needlelike.
Photos The adjective 'acicular' means needlelike in shape. An acicular aggregate of crystals contains many long, slender crystals which may radiate out like needles or bristles from a common base. Acicular crystals are typically long and narrow like a pine leaf and seem to possess a sharp point. The mineral natrolite often exhibits acicular crystals.
A thin, rather elongated crystal