How to adjust the color of plaster doll gold?

How to adjust the gold color of the plaster doll is as follows:

Gold is generally hand-sprayed, or acrylic pigment, directly using acrylic pigment. Gold can't be adjusted, it can be changed to khaki, or it has no brightness.

Gypsum is introduced as follows:

Gypsum is a monoclinic mineral and a hydrate with calcium sulfate (CaSO4) as the main chemical component. Gypsum is a widely used industrial material and building material. It can be used in cement retarder, gypsum building products, model making, medical food additive, sulfuric acid production, paper-making filler, paint filler, etc.

The microporous structure and heating dehydration of gypsum and its products make it have excellent sound insulation, heat insulation and fire prevention properties.

The structure of gypsum is introduced as follows:

Diamond crystal, C2h-2/m(L2PC). Crystals often develop into flakes or granules. Ordinary simple forms: parallel double-sided B, P, oblique square column M, L, etc. Crystal plane and usual longitudinal stripes; Sometimes it is lentil-shaped. Twins are common, one is the Gary twin or the dovetail twin with (100) as the crystal plane.

The other is Paris twin or Arrow twin with (10 1) as the double crystal plane. Aggregates are mostly dense granular or fibrous. Fine-grained blocks are called alabaster; Fiber aggregate is called fiber gypsum. Rare rose-like polymer formed by lentil crystals. There are also soil-like and flaky aggregates.

The present situation of gypsum is introduced as follows:

Natural gypsum is gypsum stone in nature, mainly gypsum dihydrate and anhydrite. China is rich in gypsum mineral resources, and the total proven gypsum reserves are about 57 billion tons.

It ranks first in the world and is distributed in 23 provinces, municipalities and autonomous regions, of which 10 reserves exceed 1 100 million tons, followed by Shandong, Inner Mongolia, Qinghai, Hunan, Hubei, Ningxia, Tibet, Anhui, Jiangsu and Sichuan, and gypsum resources in Northeast China and East China are relatively poor.

Gypsum resources in China are mainly ordinary gypsum and anhydrite, of which anhydrite accounts for more than 60% of the total. As a high-quality resource, super-grade gypsum only accounts for 8% of the total.