Zincite for use in wireless "perrikon" detectors can be made artificially as follows:

Mix thoroughly 1 part of zinc sulphate with from 1/2 to 1 part of either potassium or sodium sulphate (Glauber's salt). Place in a crucible (platinum preferred, but porcelain or iron will answer) and heat until fused to a thin liquid. Then bring up to, but not above, a bright red heat. Sulphur dioxide will be given off, and against the outside of the crucible will be formed an opaque crust, white, if the materials were pure and the operation carried out in a platinum crucible. Under the microscope this crust is shown to be composed of small crystals identical in form and composition with those of the natural zincite. Slow action is better than a rapid one, because the slower the action the larger the crystals. It is even possible to obtain crystals of perfect hexagonal shape measuring from 2 to 3 millimeters in diameter. This opaque crust is removed from the crucible in as large pieces as possible, and then set in fusible metal.

Another method is to fuse powdered zinc oxide in the electric are This gives a hard, white, amorphous, porcelain-like substance, which can be used for similar purposes.