[4] It has been found in the Goldfields District in northern Saskatchewan, as well as in the Petrovice deposit, Czech Republic.

Joseph Tyrrell was one of the first geologists from the Geological Survey of Canada to do research in the Goldfields District.

[6] Because tyrrellite is isotropic, the light bronze color will remain constant as the mineral is rotated and viewed from different crystallographic angles.

When viewed under cross polarized light, tyrrellite displays total extinction, a characteristic trait of isotropic minerals.

[5] The relative scarcity and unique occurrences of tyrrellite can give geologists considerable insight into the circumstances under which the parent rock formed.