Difference between revisions of "Lydian stone"
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== Description == | == Description == | ||
| − | A variety of quartz used used originally as a [ | + | A variety of quartz used used originally as a [[touchstone]] for grading [[gold]] and [[silver]]. |
== Synonyms and Related Terms == | == Synonyms and Related Terms == | ||
Revision as of 14:34, 21 January 2014
Description
A variety of quartz used used originally as a Touchstone for grading Gold and Silver.
Synonyms and Related Terms
lydiet (Ned.)
Authority
- Thomas Gregory, The Condensed Chemical Dictionary, Reinhold Publishing, New York, 3rd ed., 1942
- The American Heritage Dictionary or Encarta, via Microsoft Bookshelf 98, Microsoft Corp., 1998