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A decorative woodcut initial letter 'N' depicts a landscape scene populated with small figures and buildings, marking the start of the descriptive text.
In the first Chapter, the ore original: "minera"; refers to both the physical mine and the raw mineral ore extracted from it. of gold is treated. page 1.
Chapter 2. On the ore of silver. page 9.
Chapter 3. On the ore of copper. page 10.
Chapter 4. On the ore of lead. page 13.
Chapter 5. On the ore of tin. page 15.
Chapter 6. On the ore of iron. page 16.
Chapter 7. On the practice of making steel original: "acciarro"; the process of refining iron into steel was a major technological focus of the era.. page 18.
Chapter 8. On the practice of making brass original: "otone"; an alloy of copper and zinc, often made at the time using calamine ore.. page 19.
Chapter 1. On quicksilver original: "argento viuo"; mercury., and its ore. page 22.
Chapter 2. On sulfur, and its ore. page 25.
Chapter 3. On antimony, and its ore. page 27.
Chapter 4. On marcasite original: "margasita"; in the 16th century, this term was used broadly for various shiny sulfide minerals, including pyrite., and its qualities. page 28.
Chapter 5. On vitriol original: "vitriolo"; metal sulfates used in dyeing, medicine, and alchemy., and its ore. page 29.
Chapter 6. On rock alum original: "alume di rocca"; a mineral salt essential for the textile industry as a mordant for dyes., and its ore. page 30.
Chapter 7. On arsenic, orpiment, and realgar original: "orpimento, e risagallo"; these are arsenic sulfide minerals used as pigments and in chemical processes.. page 33.
Chapter 8. On common mineral salt, and several other salts made by art. page 34.
Chapter 9. On calamine, zaffre, and manganese original: "giallamina, zaffara, e manganese"; these were minerals used to color glass and ceramics or to make brass.. page 36.
Chapter 10. On Armenian bole, and borax original: "bolo, armenia, e borace"; Armenian bole is a medicinal earth/clay.. page 37.
Chapter 11. On the lodestone original: "calamita"; a naturally magnetized mineral., and its various effects. page 37.
Chapter 12. On azure, and green-azure original: "azzurro, e verde azzurro"; likely referring to lapis lazuli/azurite and malachite pigments.. page 38.
Chapter 13. On crystal, and gems, and more on glass. page 38.
Chapter 14. On glass, and other mineral media original: "mezzi minerali"; a category used for substances that were neither fully metals nor common earths.. page 41.
Chapter 1. On the method of performing the assay original: "saggio"; the chemical test to determine the purity or content of metals in an ore. of all metallic ores in general, and in particular, of those that contain silver and gold. page 45.