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Diotimos Library · Esotericism & Spirituality Collection · English Edition

Gerhard Dorn and John French

A Chymical Dictionary

An Expanded Diotimos Lexicon of Paracelsian and Alchemical Language

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A Chymical DictionaryGlacies dura

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English Edition · Branch 120 of 740

Glacies dura

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A Chymical Dictionary

p. 120

Glacies dura

Metals minerals and metallic preparations · A Chymical Dictionary

At a Glance

The word. A dictionary name for crystal.

In the book. Citrinulus is pale crystal, while Diaphanum names transparency as a quality rather than a substance.

A place to read. The 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

Citrinulus. A crystal identified through a pale appearance.

Diaphanum. A description of transparency.

Historical source: 1650 dictionary, unnumbered definition page 23; facsimile PDF page 351 — Facsimile

Sources. A Chymicall Dictionary 1650, s.v. Glacies dura

See also. Citrinulus; Diaphanum

120

About This Reading Edition

The complete 706 historical definitions of the 1650 English dictionary, modernised and accompanied by expanded Diotimos commentary, reading routes, 15 textual notes and complete linked indexes.

Historical Text

A Chymicall Dictionary, London 1650, English version associated with John French, based on Gerhard Dorn’s Dictionarium Theophrasti Paracelsi. The containing volume also prints Sendivogius and Paracelsus; neither neighboring work changes this dictionary’s attribution.

About This Edition

Complete 706 definition paragraphs with new introduction, commentary, reading guides and indexes; Diotimos Editions, 2026.

Rights

The historical 1650 English text is in the public domain. New introduction, commentary, reading guides and indexes are © 2026 Diotimos Editions and published with the site owner’s authorization.