👉 Tenebrousness, in the context of geology and astronomy, refers to a state of being obscure or dark, often associated with objects that are difficult to see or understand. It can also refer to a condition where something is so dark or obscure that it appears almost invisible, like the darkness from the moon or the stars above. In terms of geology, tenebrousness has been observed in rocks and minerals due to their lack of light penetration. For example, in the
