Final answer:
Lab-created diamonds are not considered minerals because they fail to meet the requirement of being naturally occurring, even though they satisfy all other criteria. Option D is correct.
Step-by-step explanation:
The diamonds created in a lab through high-pressure experiments are not considered minerals because they violate one of the core requirements: they must occur naturally.
According to mineral definitions, a mineral is a naturally occurring, inorganic solid with a definite chemical composition and a characteristic crystalline structure.
While lab-created diamonds meet the criteria of having an inorganic origin, being solid, having a definite chemical composition, and possessing an orderly crystalline structure, they do not satisfy the condition of being naturally occurring.
A scientist creates diamonds using high-pressure laboratory experiments. These diamonds are not considered minerals because they violate the requirement that minerals must occur naturally.