Oct. 20, 2009
Colourful ammolite gemstones are derived from fossilized ammonites, shelled creatures that inhabited an inland sea that covered much of southern Alberta 75 million years ago. Learn about the origins of ammonite, manufacturing techniques and gem grading by taking the Ammonite Gem Factory tour ($5) that runs daily at 10 am, 11 am and noon. —TK
Editor’s note (Oct. 22, 2015): Factory tours are now free!