Important: Safety Warning
This page contains a formula or preparation using substances now known to be dangerously toxic, such as arsenic, mercury, lead, or cyanide compounds. Exposure to these substances can cause severe poisoning, permanent injury, or death.
In addition, this page presents medical treatment from an era before modern medicine. The remedies described are ineffective against the conditions named, and some of the ingredients or doses are harmful. Do not use them to treat any illness; consult a qualified medical professional.
This information has been left in for historical purposes but should not be acted upon.
Home › Patent And Proprietary Medicines › Lapis Divinus
Lapis Divinus
This preparation, called also cuprum aluminatum, is the pierre divine of the French codex. It is made by mixing in powder, 3 ounces each of sulphate of copper, nitrate of potassa, and alum; heating the mixture in a crucible so as to produce watery fusion; then mixing in 1 drachm pow. dered camphor; and finally pouring out the whole on an oiled stone to congeal. The mass, when cold, is broken into pieces, and kept in a well-stopped bottle. When this preparation is used as an eye lotion, a filtered solution is made, of the average strength of 30 grains to a pint of water.