Iodine is an element that can exist as a black solid or colorless crystal.
Carbon can occur as graphite, which has black crystals.
This element is Sulfur.
An element, atom, crystal, compound, and molecule are all forms of matter.
It depends what type of crystal it is, if it is Copper, it has the element Copper in it, Just look up the Composition of the crystal, but just because its name is named after a element doesnt mean it doesnt have That element in it.
Elemental carbon can have two different solid phases with differing spatial (position) ... Crystal structures are determined experimentally by X-Ray Diffraction. So the position of the element is determined experimentally by X-ray diffraction of a crystal of the element.
Nickel has a face centered cubic crystal structure.
Tiberium is a fictional crystal in the Command & Conquer universe and is not a known element.
There isn't a black lightsaber crystal for Wii.
A black bird is alive and not an element.
A "black bird" is an animal not an element.
A balck bird is not an element. No living thing is an element.