It must be naturally occurring and crystalline.
The characteristic property of the mineral pyrite is sand it is very shiny
rough, sharp
The mineral is hematite.
it is hardness
An accessory mineral is a mineral present in small amounts in a rock, but not considered to be characteristic of the rock.
Color is often considered the most unreliable characteristic of a mineral because it can vary widely even within the same mineral species. Factors such as impurities, alteration, and external conditions can all influence the color of a mineral, leading to inconsistencies in color as a reliable identification feature.
color
Man-made
man-made {apex}
It's wind.
metallic luster
color, streak and age