A lapidary is a book about stones: their kinds, where they are found, and above all their virtues — the powers they were believed to hold. For two thousand years lapidaries were standard reading for physicians, jewellers, priests and magicians.
The ancient sources
- Theophrastus (c. 315 BCE), Aristotle's successor, wrote On Stones, the earliest surviving Greek treatise on minerals — mostly practical observation.
- Pliny the Elder's Natural History (77 CE) gathers everything known about gems in Book 37 — and repeats, often sceptically, what the magi claimed. He tells us that coral was hung round infants' necks as a protection, and that the fumes of burning jet drove away serpents.
- The Greek Orphic Lithica (late antiquity) is a poem on the magical powers of stones.
The medieval lapidaries
- Marbod of Rennes, a French bishop, wrote the Liber de lapidibus (c. 1090), sixty stones in Latin verse. It was copied, translated and imitated for four centuries.
- Albertus Magnus's Book of Minerals (c. 1260) combined natural philosophy with stone-lore, explaining virtues by the stone's mixture and the stars.
- Alfonso X of Castile commissioned a great illustrated Lapidario (13th century) linking stones to the signs and degrees of the zodiac.
- Agrippa's Occult Philosophy (1533) lists stones under each planet as part of his web of correspondences.
What the lapidaries claimed
| Stone | Traditional virtue | Note |
|---|
| Amethyst | Prevents drunkenness | Greek a-methystos, "not drunk" |
| Coral | Protects children | Hung on infants (Pliny) |
| Jet | Drives away serpents and evil | Burnt as a fumigation (Pliny) |
| Lodestone | Attraction; reconciliation of spouses | The magnet's pull, read as love |
| Sapphire | Chastity, peace, piety | Worn by medieval bishops |
| Holed stones (hagstones) | Protection against witchcraft and nightmares | British folk practice |
Behind these claims lie three kinds of reasoning: sympathy (a red stone for blood), names (amethyst), and the stars (a stone carries the virtue of its planet or sign).
Ancient names, modern minerals
Ancient gem names do not always match modern ones. Pliny's sapphirus had gold flecks — almost certainly lapis lazuli; his smaragdus covered many green stones. When you read an old lapidary, treat the name as a clue, not an identification.
Stones in modern practice
Modern "crystal healing" grew up in the 1970s and 80s. Scientific tests have not supported the claim that stones have physical healing powers. In magic, stones work as the lapidaries suggest: as symbols and anchors of intention, and as carriers of planetary correspondence. The rest of this track shows how.
Exercise
Choose one stone you own or can easily find. Look it up in Kunz's The Curious Lore of Precious Stones (1913, free online), the Crystals & Stones tool or the Correspondences tool, and write down every virtue and association you can find. Which reasoning — sympathy, name or stars — lies behind each?