Thunder Bay
Thunder Bay, Ontario, is a classic Canadian locality for amethyst — including the deep-purple, red-flecked “Thunder Bay amethyst”.
About Thunder Bayextended article
What it is known for
Amethyst occurs in veins and cavities in the Thunder Bay area, often with characteristic red hematite inclusions giving a distinctive look.
What collectors look for
Richly coloured amethyst, especially the red-included Thunder Bay material, is the collector and lapidary interest.
Frequently asked questions
Where is Thunder Bay?
Thunder Bay is a mineral locality in Ontario, Canada.
What minerals are found at Thunder Bay?
Minerals from Thunder Bay include Amethyst.
What is Thunder Bay known for?
Thunder Bay, Ontario, is a classic Canadian locality for amethyst — including the deep-purple, red-flecked “Thunder Bay amethyst”.
References & databases
Mindat.org is the world’s largest open mineralogy database.