. . . . "The small solids that are the elements of crystals, the integrant molecules, have in every crystal of one mineral species an invariable form whose faces lie along the natural cleavage joints." . "mechanism" . . "Formalization: several. As \"every species has one unit cell\" it is testable and nearly true (polymorphs aside); as a literal polyhedral molecule it is superseded." . "The integrant molecules of one mineral species have an invariable form" . "(a,b,c,\\alpha,\\beta,\\gamma)_{\\text{species}} = \\text{const}" . "Haüy RJ, “Traité de minéralogie, tome premier”, Conseil des Mines, Paris (Chez Louis) (1801); Discours préliminaire, p. xiv. Scope: All crystalline minerals; the building unit of a species." . "Haüy RJ. Traité de minéralogie, tome premier. Conseil des Mines, Paris (Chez Louis) (1801)" . "René Just Haüy" . "1801"^^ . "Volume 1 holds the general theory of crystal structure: integrant molecules, the primitive form, and the laws of decrement first published in the 1784 Essai. The 1784 Essai (archive.org bub_gb_HbJDAAAAcAAJ) was fetched but its eighteenth-century OCR (long s) is too corrupt to quote; see SEARCHES.md. French." . "Public domain (1801)." . "Traité de minéralogie, tome premier" . . . . "Reading copy of Traité de minéralogie, tome premier" . . . "delphisci crystals-and-form claim extractor" . . . . "Claude Fable 5.1" . . . . . . . . . . . . "Page 14 of the reading copy; paragraph 67 of the normalised text 1801-hauy.txt (sha256 75e8725eafc33d75d3da5d556fa40bdfeaf55bd1fcb6fddfa8cdb23a59082d19), produced by build/fetch.py and checked by build/check-quotes.mjs. The text itself is not committed." . . . "ces petits solides , qui sont les élémens des cristaux, et que j'appelle leurs molécules intégrantes ont, dans tous ceux qui appartiennent à une même espèce de minéral, une forme invariable" . . "75e8725eafc33d75d3da5d556fa40bdfeaf55bd1fcb6fddfa8cdb23a59082d19" . "Checksum of the normalised one-paragraph-per-line text derived from the reading copy, not of the reading copy itself." . "crystals-and-form" . "2026-11-07T03:18:23.997Z"^^ . . . . . "René Just Haüy 1801 claim: The integrant molecules of one mineral species have an invariable form" . . "RSA" . "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyFHtPB6p0mCjDozxlOY9CmO3nBm7Te3jFbXyLmM+G1tGe47Da0jYIbhkl9Oo1ZjxmCa3LCwlEqK8gj6hEIcL4ahW30JXh9HycfKVk1bugkzMEV15tJdTzAU3sGMFnbNsn43xY2LFLy45tApkRm5byEiM7oRRrooIdwoQKnP4Wzq/bfAoJ9qvW+MGkelyOTd1jbSt+KfmT7xKmDfWzAHddUlWwMX2QJOLxDaffOteTop6ZRgPiNmPJKA/S62Gac9XtSYT3oDkZ6/nr5cxxNLpOyxTf5FPISiCe11xYO/unYjY+mwnOfA8yhJIyx1l0O9I0vpOpn+E5TvyHJV+oSTrvwIDAQAB" . "rLgjNhXkIwcX/t9BPTcw7NqQaVWAF5agSfcRDT95pI0rwFCLXMCnrAVcGSkki/jh/1cvwKFYgO9t9XRNwwmM/RckCMbksWjLdg+DteMtakYHW8z+9JKBNN8F/mdbWKs+70gcmaYGPdmpXV2thHuHYTiZafWmnjV8tG8Rw6SKybPuOPHyNPQGJBXuoevCKXsSWsfQhsn3x3y0x7E+vKYB+ezK/98k0qHqrbGjwu0bIYwuWqeViFOB+O7cjLtVIx1PBtruyluxFgadRF5ZEimbfJeCGfVfLMaEcM1YnHqJ1smjmk4jJD2OzhCkA7Cm+iUQlYUmElWldH+BnU7O9KUbdQ==" . . .