Question

what is the crystal form of minerals c and d? (both samples should have the same crystal form)
minerals c and d
equant
tabular
prismatic
bladed
acicular
fibrous

Explanation:

To determine the crystal form, we analyze the shapes of Minerals C and D. The crystals are elongated, with a prism - like (long, columnar) structure, which matches the prismatic crystal form. Equant is more rounded/equal in dimensions, tabular is flat/plate - like, bladed is blade - shaped, acicular is needle - like (very thin and long), and fibrous is thread - like. The crystals here have a distinct prismatic (columnar, elongated with flat faces) appearance.

Answer:

Prismatic