How to draw a beautiful gem crystal?

How to draw a beautiful gem crystal is as follows:

Make a silhouette. First, draw a crystal silhouette in monochrome. Please use gray with medium brightness as the background color. The focus of the crystal silhouette is the height of random protrusions.

Divide the surface into black and white, and paint all four sides of the crystal with different brightness of gray. Please refer to the color scheme at the bottom of the illustration. Later, the texture will be cut and painted, so it should be layered. The base color layer used for sketching is located at the bottom of the layer hierarchy.

Draw the texture. Draw the crystal texture with the brush introduced at the beginning. Explanatory illustrations are drawn with brushes, but it is no problem to express textures with textures. Draw texture layers by cutting them into gray color separation layers to make them easier to smear.

Use an overlay color. Create a new overlay and color it from above. Paint the whole area with a spray gun, being careful not to make it too fluffy. The key to making the crystal look beautiful is to change the color of each surface slightly.

Crystal is a rare mineral, a kind of gem, and a timely crystal, which belongs to the timely family in mineralogy. The main chemical composition is silicon dioxide, and the chemical formula is SiO2.

When pure, colorless and transparent crystals are formed. When containing trace elements such as aluminum and iron, it is pink, purple, yellow and brown. After irradiation, trace elements form different types of color centers and produce different colors, such as purple, yellow, brown and pink.

Minerals containing associated inclusions are called inclusion crystals, such as hair crystal, green ghost, red rabbit hair and so on. Inclusions include rutile, tourmaline, actinolite, mica and chlorite.