Luster
The reflective and transmission properties of a mineral are determined by its crystal structure and chemical composition. Highly reflective minerals like quartz have clear crystal faces and can reflect light, while minerals with lower reflectivity like clay minerals absorb or transmit light due to their opaque or fine-grained structure. The color of a mineral can also influence its light transmission characteristics, with darker minerals absorbing more light and lighter minerals transmitting light more easily.
The way a rock or mineral feels is known as its texture. Texture describes the physical characteristics such as smoothness, roughness, or graininess of a rock or mineral when touched.
When a mineral is subjected to mechanical impact, it may show characteristics like cleavage, fracture, and hardness. Cleavage describes how a mineral breaks along flat planes, fracture describes how it breaks along irregular surfaces, and hardness measures the mineral's resistance to scratching or abrasion. Additionally, the impact can also produce deformations such as bending or stretching in some minerals.
The appearance or quality of light that is reflected from the surface of a mineral is called luster. It describes how light interacts with the surface of a mineral, giving it characteristics such as metallic, pearly, vitreous, or silky.
The property that describes a mineral's surface shines is called luster.
Some alien races could have mineral based characteristics, if they exist.
A mineral that is useful and economically viable to extract and purify is an ore.
ore,coal
The crystallization
The five properties of a mineral include color, streak, luster, hardness, and cleavage or fracture. Color is the visual appearance of the mineral, streak is the color of the mineral's powder, luster describes how the mineral reflects light, hardness measures the mineral's resistance to scratching, and cleavage or fracture describes how the mineral breaks.
The property that describes how minerals interact with light is known as "luster." Luster refers to the way light reflects off a mineral's surface, and can be described as metallic, glassy, pearly, silky, dull, or earthy.
The word that describes the shapes and sizes of grains in a rock is "texture." Texture refers to the arrangement and size of mineral grains in a rock, whether they are fine-grained, coarse-grained, or other specific characteristics.