It must be naturally occurring and crystalline.
The characteristic property of the mineral pyrite is sand it is very shiny
rough, sharp
it is hardness
The mineral is hematite.
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.
Man-made
color
It's wind.
metallic luster
man-made {apex}
color, streak and age