From the book
The Manly Hall Manuscript Collection, Volume I
Attributed to Abraham the Jew · Diotimos Editions · 2026
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At a Glance
- The wordMarcasite is a plural historical material-name. The manuscript speaks of nitrous, copper-associated, vitriolic and golden contexts rather than giving a single mineralogical definition.
- In this bookMarcasites appear among products of barren mineral ground, among carriers of harmful spirits, and in the closing comparison of the stone with a gold-generating mine or matrix. The functions differ with the context.
- TranslationThe edition retains marcasite and preserves both French spellings. It does not assume that each occurrence denotes only the mineral now classified under that name.
- A place to readRead manuscript 63v, scan 154, beside 137r, scan 311: copper/vitriolic material and gold-generating matrix provide two distinct uses.
Meaning
The text's qualifiers matter more than the bare name. Marcasites associated with niter are described through meteorological and destructive powers; those participating in copper are compared with harmful Venus spirits; those of gold become a point of comparison for the perfected stone.
A grouped entry can hold those relations together without making them chemically identical. The word functions as a family of mineral materials within the author's scheme. Modern identification would require additional evidence about each qualified subject, not simply a translation of the noun.
Use in the book
The desert emblem supplies the first material setting. Brackish, reddish, calcined ground produces salts, fire-stones and marcasites while supporting little vegetation (41v; scan 110). This contrast with the flourishing garden belongs to an operative account of mineral conditions, not an inventory of one precisely delimited ore.
The harmful-spirit discussion next places offensive spirits in niter or its marcasites. They inhabit or disturb air, join thunder and lightning, and cause pestilential effects while challenging Jupiter's life-giving order (61r; scan 149). The point is the conflict between natural powers, with the mineral supplying a body or source for the agent.
The copper passage is more specific. Spirits of Venus or copper, or marcasites participating in copper, oppose favorable celestial Venus and good copper spirits. The author compares their green or yellow-green forms with infernal furies and assigns poison to their parts (63v; scan 154). The qualifier vitriolic then enters the comparison. The following side relates these harmful agents to quicksilver, sulfur and vitriol, emphasizing their combined nature.75
Near the conclusion the tone changes. The stone is said to contain more fixed spirit than other stones and to be a mine and matrix of gold more fully than gold's marcasites, because it allegedly produces gold indefinitely (137r; scan 311). Here marcasite furnishes a natural generative comparison. The passage should not be forced into the earlier exclusively adverse description.
Across these appearances the name belongs to the book's account of minerals as seats of powers, matrices and mixed natures. What makes a particular marcasite useful or destructive is its composition and relation as the author describes them, not the bare occurrence of the term.
Places to read
- Manuscript 41v · Scan 110Marcasites among the products of barren mineral ground.
- Manuscript 61r · Scan 149Niter and its marcasites as seats of offensive spirits.
- Manuscript 63v · Scan 154Copper-participating and vitriolic marcasites compared with destructive Venus spirits.
- Manuscript 64r · Scan 155The harmful subject linked with quicksilver, sulfur and vitriol.
- Manuscript 137r · Scan 311Gold's marcasites compared with the stone as generative mine and matrix.
Translation
‘Marcasites’ keeps the historical plural. French marcassites and marcasites are both preserved as written; the spelling difference alone does not establish two distinct materials.
‘Participating in copper’ renders the source's relation rather than replacing it with an ore formula. ‘Mine’ and ‘matrix’ at scan 311 retain its generative comparison, which is part of the claimed action of the stone.76
marcassites
Attested: H001-S110; H001-S149; H001-S154. The doubled-s form in mineral and harmful-spirit contexts.
marcasites
Attested: H001-S311. The single-s form in the closing comparison with gold-bearing matrices.
marcassite vitriolique
Attested: H001-S154. The explicitly qualified vitriolic occurrence.
Source note
Manuscript 63v–64r, scans 154–155. The copper/vitriolic description and subsequent compound account should be read together rather than used as a single modern mineral definition.
The production of gold indefinitely at H001-S311 is the author's assertion about the stone, not an independently established property of a historical marcasite.