Imitations of malachite, lapis lazuli, aventurine and turquoise. simple recipes

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FACTORY TECHNOLOGIES AT HOME - SIMPLE RECIPES
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Imitations of malachite, lapis lazuli, aventurine and turquoise. Simple recipes and tips

Factory technologies - simple recipes

Directory / Factory technology at home - simple recipes

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Having learned to make imitation plates under mother-of-pearl and marble, it is possible, by introducing certain substances into the composition, to prepare various other imitations, for example, malachite, lapis lazuli, turquoise, aventurine, etc. In addition, original enamel photographs can be prepared in the same way.

Imitation malachite

To make imitations of malachite, adhesive solutions were used, to which a green dye was mixed, for example, ultramarine green or chrome green with an appropriate amount of zinc oxide. In order to obtain three, four or five different shades of green, a small amount of coloring matter is first added to the main adhesive mass, which is poured onto glass plates, giving it only a delicate light green color.

As described above, the main adhesive mass is poured onto a glass plate, then poured through a funnel having a narrow pouring hole, variously colored adhesive masses are poured and reproduced by means of a comb, the teeth of which are of different thicknesses and spaced from each other at different distances, drawings, if possible more similar to natural malachite. When this is achieved, the plate is covered with a gelatin coating and separated from the glass. Making successful imitations of malachite is the most difficult operation, and therefore we recommend starting experiments with small plates with an area of 60 to 100 cm2,

Imitation lapis lazuli

The mineral lapis lazuli has dark blue spots and veins against a barely noticeable white Background, between which golden-colored spangles pass, consisting of very small crystals of iron pyrite interspersed in the rock. In order to imitate this rock, it is necessary to slightly change the course of the process of obtaining the main glass mass.

The glass board is covered, as usual, with a layer of gelatin, this layer is allowed to dry to such a state that after drying it is not sticky if lightly touched with a finger. Bright yellow (golden) bronze in the form of dots and vague specks is applied to this gelatinous layer with jerky blows or splashes of a hair brush, which reproduces the streaks of iron pyrite in real lapis lazuli.

Then a glycerin-adhesive solution is prepared, painted in a slightly bluish color with blue aniline paint with an admixture of blue ultramarine. This adhesive solution is kept hot all the time in a water bath with frequent stirring. It is applied with a brush on the gelatinous layer so as to convey the lapis lazuli pattern as accurately as possible: the places that should be dark blue are covered a second time with a blue solution.

After the plate is painted, it is doused with an adhesive solution, to which a little ultramarine and a large amount of zinc white are mixed. This solution serves as a coating for the pattern applied underneath. The imitation is dried in the usual manner and removed from the plate.

According to another method, artificial sea foam is mixed with a small amount of an adhesive solution of yellow mica and ultramarine blue, the mass is dried in appropriate forms and, finally, it is impregnated with melted wax, with spermaceti or paraffin.

This mass is very fragile and has a slight hardness, but when polished with a woolen cloth, it gets an unusually beautiful sheen.

Imitation aventurine

Known as aventurine, the mineral consists mostly of slightly reddish-colored quartz, which has a large number of thin, golden-brilliant crystals that give it a peculiarly lustrous appearance. Imitation of this mineral can be achieved in the following way.

A gelatin layer is poured onto a glass board, allowed to dry. Then tinsel gold leaf is placed on a very fine wire sieve, which is rubbed with a strong bristle brush through the sieve onto the gelatin. These glitter stick to the plate, which is left lying until the gelatin dries. Then an opaque and slightly colored solution is poured onto the gelatin, pre-mixed with kolkotar and zinc white, after which the plate is dried in a drying chamber and, finally, removed from the glass.

If copper foil is used instead of tinsel gold, then aventurine with a copper-red sheen is obtained.

If finely ground mica is sifted, it turns out, depending on the color of the mica used, an imitation of aventurine with a silvery, golden or bottle-green sheen.

Imitation turquoise

Pieces of ordinary or ivory corresponding in shape to turquoise are dipped into a strong solution of copper oxide in water and left to lie in it for 8-14 days.

In this case, the pieces are impregnated with copper hydroxide, after washing with water and drying, they have a bluish-green color of real turquoise.

Author: Korolev V.A.

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