balas ruby: References & Edit History
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Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Modified link of Web site: Gemological Institute of America - Historical Reading List: Ruby and Balas Ruby (Spinel). | Sep 25, 2026 | ||
| Add new Web site: Gemological Institute of America - Historical Reading List: Ruby and Balas Ruby (Spinel). | Jul 03, 2026 | ||
| Add new Web site: Academia - Balas Rubies for the King of England (1413-15). | Nov 22, 2024 | ||
| Add new Web site: International Gem Society - What are Balas Rubies and Ruby Spinels? | Nov 10, 2023 | ||
| Article added to new online database. | Jul 20, 1998 |
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