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 dictionary name for crystal.
- In the bookCitrinulus is pale crystal, while Diaphanum names transparency as a quality rather than a substance.
- A place to readThe historical definition below, 1650 dictionary, unnumbered definition page 23; facsimile PDF page 351.
Historical definition
Glacies dura is crystal.
Meaning
The identification gives no source, form or preparation of the crystal. The headword therefore functions as a naming aid, without providing the description needed for a more exact modern mineral identification.
Use in the book
Citrinulus is pale crystal, while Diaphanum names transparency as a quality rather than a substance. These links help distinguish the general named material from a qualified appearance or a property that many subjects might share. Glacies dura itself supplies only the simple identification.
Places to read
- Glacies duraRead the complete historical definition and its commentary.
- CitrinulusA crystal identified through a pale appearance.
- DiaphanumA description of transparency.
Source note
Historical source. 1650 dictionary, unnumbered definition page 23; facsimile PDF page 351 — Facsimile