Mineral pigments are made by grinding ore directly, not by blending. There are mineral powder in the art supplies market, which can be blended into pigments by themselves. Peach gum should be added to traditional Chinese painting, and gelatin can also be used to modulate pigment for rock painting. If dry vegetable oil is added, oil painting color can be modulated, and Tampera pigment can be modulated by adding egg yolk emulsion.
Mineral pigments are inorganic pigments, which belong to inorganic colored pigments. There are two main sources of mineral pigments: one is made of natural minerals through mineral processing, crushing, grinding, grading and refining, and is mainly used in painting, handicrafts, antique, cultural relics restoration and so on. Another source of inorganic pigments is chemical synthetic pigments made from natural mineral products through a series of chemical treatments.
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Modern artificial mineral color (new rock) is a remanufactured mineral. Natural mineral color is the highest color in painting, but its hue is limited, the original stone is hard to find, and gem minerals are expensive, so there is artificial mineral color. The new rock has rich hue, never changes color, is cheap, uses the same technique and texture as natural mineral color, and has many kinds and strong light resistance. It is a stable pigment.
Chemically synthesized mineral color is a mineral color formed by combining two or more substances through scientific principles. Its representative is Zhu Hechen sand, and Zhu is a compound of mercury and sulfur. Heating adjustment, different temperatures will produce various hues of red.
Water-dried mineral color is a color obtained by dyeing high-grade light-resistant pigments and plant pigments with clam powder. Broadly speaking, it also includes natural soil mineral colors, such as loess, vermilion, ochre, etc., and also includes the finest color ground by natural ore. Because it needs to be ground and dyed with water for production, it is called water-dried color when water naturally dries to form color blocks.
Adding some chemical synthetic pigments to natural minerals, blending with water has a transparent feeling, so it is called water-based color. After coloring, it does not cover the modeling line, so it is easy to mix colors and reconcile.