Valtsimine
Valtsimine is a fictional mineral used in science fiction and educational exercises to illustrate how minerals are described and classified. In the fictional mineral taxonomy, valtsimine is treated as a silicate with a layered framework and a monoclinic crystal system. Its hypothetical composition is described as consisting mainly of iron and aluminum with silicon-oxygen tetrahedra, and often depicted with small substitutions by magnesium and titanium.
Physical properties commonly cited include a dark gray to black color, a metallic to submetallic luster, and
Valtsimine is said to form in high-temperature geological settings in the fiction’s world, such as ultramafic
In use, valtsimine appears mainly in educational examples to demonstrate data presentation and classification, and in