The American Opal Society provides its members the following benefits:
- Opal Express newsletter delivered monthly
- Extensive library on opals*
- Field trips
- General meeting presentations
- Annual Opal, Gem & Jewelry Show, featuring opal dealers, demonstrators, refreshments, and club activities.
- Extensive links to AOS-related sites
- Access to Opal Express Newsletter Archives
- The OpalSociety Yahoo Group
- Information on opal and other gemstone collecting sites
*The library is accessible to Southern California members only.