From the book
Nine Books on the Nature of Things
Attributed to Paracelsus · Diotimos Editions · 2026
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At a Glance
- The wordGemma and lapis name a gem and a stone, but their local distinction is explained through the qualities of formative matter rather than a modern mineralogical table.
- In the workBook 1 says gems arise from the subtlety of earth and transparent, crystalline Mercury, Sulphur and Salt, each with its distinct colours.
- In this editionThe edition renders subtilitas as “subtlety,” preserving a historical quality rather than asserting a modern mechanism.
- A place to read“ex pellucido & Crystallino Mercurio”
Meaning
Gemma and lapis name a gem and a stone, but their local distinction is explained through the qualities of formative matter rather than a modern mineralogical table. Mucilago is the slimy or mucilaginous material associated with water and ordinary stones. Subtilitas denotes a fine or subtle condition from which formation proceeds; it is not a numerical particle size. The three-principle vocabulary remains active: transparent and crystalline constituents are assigned to gems, mucilaginous constituents to ordinary stones. Related mucilaginous language also occurs earlier in the account of eggs and putrefactive generation.
Use in the book
Book 1 says gems arise from the subtlety of earth and transparent, crystalline Mercury, Sulphur and Salt, each with its distinct colours. Ordinary stones instead arise from the subtlety of water and mucilaginous forms of the three principles. The contrast matters because the same constituent names otherwise risk making every mineral product seem identical.
The paragraph presents visible adherence of mucilage to a stone in water as evidence. It then moves from that observation to a claim that collected mucilaginous matter can coagulate in a vessel into the sort of stone that would otherwise form naturally over a long time. The visible adherence is the stated evidence; its interpretation as matter that generates stone is a further inference. Pebbles and the coagulation of sand are included within its account.
Book 2 returns to artificial stone growth through the flint example. Repeated contact with the stone’s river water is alleged to enlarge it until it takes the vessel’s shape, faster than the Archaeus of waters could do naturally. Unlike the homunculus or transmuting tincture, this result is expressly described as useless to the recipient but worthy of wonder. The two passages therefore connect material constitution, coagulation, speed and shape without equating every successful operation with practical benefit.
Places to read
- Book 1 · Generation · Passage 15Latin“ex pellucido & Crystallino Mercurio” Transparency and crystalline condition distinguish the gem account.
- Book 1 · Generation · Passage 15Latin“ex mucilagine aquae nascuntur omnes lapides” Mucilage is assigned the formative role for ordinary stones.
- Book 1 · Generation · Original marginal note 34Latin“Lapidum generatio artificialis.” The margin identifies the artificial counterpart.
- Book 2 · Growth · Passage 5Latin“silicem in forma cucurbitae” The later example ends with a vessel-shaped flint.
Translation in this edition
The edition renders subtilitas as “subtlety,” preserving a historical quality rather than asserting a modern mechanism. Its “pebbles” for calculi is local to the stone paragraph; it does not require the medical sense of bodily calculi. The forms in the entry distinguish lemmas from printed inflections.