Particle Shape

subhedral

http://resource.geosciml.org/classifier/cgi/particleshape/subhedral

definition Crystalline particles in a rock are partly bounded by crystal faces, usually referring to igneous or metamorphic grains more like this
source MacKenzie, W.S., Donaldson, C.H. & Guilford, C., 1982. Atlas of igneous rocks and their textures. John Wiley & Sons, New York more like this
type
Resource
Concept
in scheme particleshape
has top concept
subhedral
is primary topic of subhedral
top concept of particleshape