What this site is
Crystal Compendium is a reference of minerals and gem materials. Each page reprints the mineral's property table and lead paragraph word for word from its English Wikipedia article (text licensed CC BY-SA 4.0). Earlier versions of this site published healing, energy, ritual and care advice that no source backs, and it has been removed.
The source, named as the fetch records it
English Wikipedia: for each mineral or gem name on the live site, its own article's infobox property rows and lead summary (Wikimedia Action API parse, section 0, and REST page/summary). Text licensed CC BY-SA 4.0.
Source URL: English Wikipedia. Fetch date: 2 October 2026. Properties and descriptions are Wikipedia’s, licensed CC BY-SA 4.0; this site adds no advice of its own.
Earlier versions of this site published material that was not drawn from any real source. It has been removed and replaced with this source-backed reference.
How to read a page
Every page reprints its Wikipedia article’s property table and lead paragraph word for word, with the article link, the revision id and the licence line. Values are printed exactly as recorded: wording, ranges and units are not paraphrased, rounded or added to. Where an article carries no property table, the page says the values are not available and nothing is estimated.
Licensing
Text and properties from Wikipedia, licensed CC BY-SA 4.0. See Terms and licence.
Contact
Corrections are welcome: see Contact.