From the book
A Chymical Dictionary
Gerhard Dorn and John French · Diotimos Editions · 2026
Browse this book’s lexicon →Orientation
At a Glance
- The wordA name for mineral veins.
- In the bookCompare Virgulta fossorum, rods used by miners to discover mines.
- A place to readThe historical definition below, 1650 dictionary, unnumbered definition page 45; facsimile PDF page 373.
Historical definition
Thisma is mineral veins.
Meaning
The plural equivalent points to formations or places in which mineral matter occurs, rather than directly naming a finished metal or a preparation.
Use in the book
Compare Virgulta fossorum, rods used by miners to discover mines. Together the entries give access to the vocabulary of mineral places and the practices historically associated with finding them.
Places to read
- ThismaRead the complete historical definition and its commentary.
- TracksatMetal considered before removal from its natural mine.
- Virgulta fossorumRods associated with the historical search for mines.
Source note
Historical source. 1650 dictionary, unnumbered definition page 45; facsimile PDF page 373 — Facsimile