One great difficulty which besets any one who is trying to find a clue to guide him through the labyrinth of the medical affinities of gems is the fact that there was, from an early period, a tendency to attribute the virtues of one gem to another, probably owing to the commercial instinct which urged the dealer to praise his wares in every possible way, so that no part of his stock should fail to find a purchaser. This tendency is especially marked in the old Hindu Lapidaries, wherein it is almost impossible to find any differentiation of the stones in respect to their curative or talismanic virtues. Only the condition and perfection of the gems are made the criterion of their worth. Any given stone, if perfect, was a source of all blessings to the wearer and possessed all remedial powers, while a defective stone, or one lacking the proper lustre or color, was destined to be a source of untold misfortune to the owner.

The European writers on the medical properties of precious stones were influenced by quite different considerations; their chief aim was to represent each stone, regarded simply as a mineral substance, as being the abode of the greatest possible number of curative properties. Indeed, many of the most highly recommended electuaries contained all kinds of stones, as though the effect to be produced did not depend upon the qualities of any single stone, or class of stones, but rather upon the quantity used. In Arnobio’s “Tesoro delle Gioie,”[464] we have a receipt for the composition of “the most noble electuary of jacinth.” This contains jacinth, emerald, sapphire, topaz, garnet, pearl, ruby, white and red coral, and amber, as well as many animal and vegetable substances, in all, thirty-four ingredients. It would indeed seem that a good dose of such a mixture should have provided a cure for “all the ills that flesh is heir to,” by the simple and effective means of removing the unhappy patient to a better world.

Treating of the metallic affinities of precious stones, Paracelsus (1493-1541) affirmed that the emerald was a copper stone; the carbuncle and the jasper were golden stones; the ruby and the chalcedony, silver stones. The “white sapphire” (corundum) was a stone of Jupiter, while the jacinth was a mercurial stone. Powdered jacinth mixed with an equal quantity of laudanum was recommended as a remedy for fevers resulting from “putrefaction of the air or water.” This illustrates the custom of combining an inefficacious material, such as the powder of a precious stone, with another possessing genuine remedial virtue, the name of the stone appealing to the popular superstitions regarding its therapeutic powers, and thus rendering the preparation more acceptable.[465]

It is related by Plutarch that when Pericles was dying of the plague, he showed to one of his friends, who was visiting him, an amulet suspended from his neck. This had been given to Pericles by the women of his household, and Plutarch cites the instance as a proof that even the strongest minds will at certain times yield to the influence of superstition.[466]

There were sceptics in ancient times who put no faith in the popular superstitions as to the curative powers of precious stones. Eusebius (ca. 264-ca. 349), in his oration on the Emperor Constantine the Great (272-337), says:[467]

He held that the varieties of stones so greatly admired were useless and ineffective things. They possessed no other qualities than their natural ones, and hence no efficacy to hold evils aloof; for what power can such things have either to cure disease or to avert death? Nevertheless, although he well knew this, he was in no wise opposed to their use simply as ornaments by his subjects.

The Middle High German didactic poem on precious stones, composed by Volmar, or Volamar, about 1250, appears to have been written as a rejoinder to a satirical poem, the work of a writer called the “Stricker” (rascal). What chiefly aroused Volmar’s wrath was the fact that this irreverent personage dared to assert that a piece of colored glass set in a ring looked just as well and possessed the same virtues as a genuine precious stone of the same color. Volmar does not mince matters, and roundly declares that whoever should kill the man who wrote thus would do no sinful act. While we can scarcely recommend such drastic action, we must admit that we feel a little sympathy with the medieval champion of genuine stones against imitations.

A most interesting item recording one phase of a great tyrant’s character is reported by Sir Jerome Horsey, who was entrusted with messages to and from Elizabeth of England and Ivan the Terrible of Russia. He gives, in his “Travels,” a graphic recital of an interview with Ivan just before the latter’s death in 1584. We retain the archaic spelling as it is reproduced in the Hakluyt publication from the original manuscript. Writing of Ivan, Horsey says:[468]

Carried every daye in his chair into his treasure. One daye the prince beckoned me to follow. I strode emonge the rest venturously, and heard him call for som precious stones and jewells. Told the prince and nobles present before and aboute him the virtue of such and such, which I observed, and do pray I may a littell degress to declare for my own memorie sake.

Facsimile page of Italian vellum manuscript treatise of the virtues of gems. Italian MS. of the Fourteenth Century in author’s library.

Treating of Topaz, Turquoise, Jacinth, Garnet, Chalcedony, Rock-crystal, Coral.

A larger image is available [here].

“The load-stone you all know hath great and hidden vertue, without which the seas that compas the world ar not navigable, nor the bounds nor circles of the earth cannot be knowen. Mahomett, the Percians proffit, his tombe of steell hangs in their Repatta at Darbent most miraculously”—Caused the waiters to bringe a chaine of nedells towched by his load-stone, hanged all one by the other.—“This faire currell (coral) and this faire turcas you see; take in your hand; of his natur arr orient coullers; put them on my hand and arm. I am poisoned with disease: you see they shewe their virtue by the chainge of their pure culler into pall: declares my death. Reach owt my staff roiall; an unicorns horn garnished with verie fare diomondes, rubies, saphiers, emeralls and other precious stones that ar rich in vallew; cost 70 thousand marckes sterlinge of David Gower from the fowlkers of Ousborghe.[469] Seek owt for som spiders.” Caused his phiziccians, Johannes Lloff, to scrape a circle thereof upon the tabell; putt within it one spider and so one other and died, and some other without that ran alive apace from it.—“It is too late, it will not preserve me. Behold these precious stones. This diomond is the orients richest and most precious of all other. I never affected it; yt restreyns furie and luxurie and abstinacie and chasticie; the least parcell of it in powder will poysen a horse geaven to drinck, much more a man.” Poynts at the ruby. “Oh! this is most comfortable to the hart, braine, vigar and memorie of man, clarifies congelled and corrupt bloud.”—Then at the emerald.—“The natur of the reyn-bowe; this precious stone is an enemye to uncleanness. The saphier I greatlie delight in; yt preserves and increaseth courage, joies the hart, pleasinge to all the vitall sensis, precious and verie soveraigne for the eys, clears the sight, takes awaye bloudshott and streingthens the mussells and strings thereof.”—Then takes the onex in hand.—“All these are Gods wonderfull guifts, secreats in natur, and yet revells [reveals] them to mans use and contemplacion, as frendes to grace and vertue and enymies to vice. I fainte, carie me awaye till an other tyme.”

Some believed that when precious stones were worn to relieve or prevent disease, it was important that the different stones should be worn on different parts of the body. According to one authority, the jacinth should be worn on the neck; the diamond, on the left arm; the sapphire, on the ring-finger; the emerald, or the jacinth, on the index-finger; and the ruby or turquoise, on either the index-finger or the little finger.[470] There is, however, little reason to assume that these rules were generally known and observed.