opal: References & Edit History
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Article History
| Type | Description | Contributor | Date |
|---|---|---|---|
| Modified link of Web site: Royal Society of Chemistry Publishing - RSC Advances - Water characterization and structural attribution of different colored opals. | Sep 05, 2026 | ||
| Add new Web site: National Center for Biotechnology Information - PubMed Central - Biocompatibility of crystalline opal nanoparticles. | Jun 11, 2026 | ||
| Add new Web site: ABC listen - The Science Show - Opals on Mars? | Apr 28, 2026 | ||
| Add new Web site: Royal Society of Chemistry Publishing - RSC Advances - Water characterization and structural attribution of different colored opals. | Jan 24, 2026 | ||
| Add new Web site: BBC News - Dazzled by Australia's precious opals. | Oct 03, 2025 | ||
| Add new Web site: NSW Department of Primary Industries - Opal (PDF). | Aug 22, 2025 | ||
| Add new Web site: Calvin University - Calvin News - Mineral Treasures - Opal. | May 15, 2025 | ||
| Add new Web site: CiteSeerX - Physical and chemical properties of some italian opals (PDF). | Mar 21, 2025 | ||
| Add new Web site: Government of South Australia - Opal. | Feb 06, 2025 | ||
| Add new Web site: University of Nebraska�Lincoln - School of Natural Resources - Opal. | Sep 21, 2024 | ||
| Add new Web site: International Gem Society - Opal Stones and Gems: Value, Price, and Jewelry Information. | Feb 26, 2024 | ||
| Add new Web site: Mindat.org - Opal. | May 24, 2023 | ||
| Add new Web site: Geoscience Australia - Opal. | Feb 18, 2023 | ||
| Add new Web site: Geology.com - What is Opal? | Dec 08, 2022 | ||
| Add new Web site: The Australian Museum - Opal. | May 16, 2022 | ||
| Add new Web site: The Spruce Crafts - 10 Interesting Facts About Opals. | Mar 26, 2021 | ||
| Add new Web site: Gemological Institute of America - Opal. | Mar 26, 2021 | ||
| Add new Web site: International Colored Gemstone Association - Opal. | Oct 13, 2019 | ||
| Added video. | Feb 03, 2015 | ||
| Add new Web site: Mineralogy Database - Opal Mineral Data. | May 09, 2013 | ||
| Add new Web site: Mindat.org - Opal. | May 09, 2013 | ||
| Add new Web site: Scandinavian Mineral Gallery - Opal. | May 09, 2013 | ||
| Add new Web site: Mineral Zone - Opal. | May 09, 2013 | ||
| Add new Web site: Smithsonian National Museum of Natural History - Opal. | May 09, 2013 | ||
| Add new Web site: Amethyst Galleries' Mineral Gallery - Opal. | May 09, 2013 | ||
| Add new Web site: United States Geological Survey - Opal. | May 09, 2013 | ||
| Add new Web site: Minerals.net - Opal. | May 09, 2013 | ||
| Added image of raw opals. | Jul 23, 2010 | ||
| Article added to new online database. | Jul 28, 1999 |
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