Dallasite is a breccia made of quartz, epidote, altered basalt and pumpellyite. The stone dallasite is named after Dallas Road, Victoria, British Columbia. It is considered the unofficial stone of British Columbia’s capital city. Dallasite is found in Triassic Volcanic rocks of Vancouver Island and is considered the third most important gem material in British Columbia.
- Pearsons Howard L., BC Gem Trails 3rd addition with maps.
- Hudson Rick (1999), A Field Guide to Gold, Gemstone and Mineral Sites of British Columbia. Volume 2. Orca Book Publishers.
- VanLandingham, Sam L. (1985), Geology of world gem deposits
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