Tatlock Quarry is the largest calcium carbonate operation in Canada and is known for producing some of the purest calcium carbonate globally.
The deposit consists of white, medium-crystalline calcite marble. Several north-trending calcite zones with varying silica content are present on the site.
The main quarry belt contains less than 3.0% silica. Minor minerals such as amphibolite, phlogopite, and diopside are also observed.
The marble body dips approximately 55° to the east, with the low-silica zone having a true thickness of 85 metres. This zone is bordered by higher-silica calcite (3.0–11%) to the east and dolomite to the west(Tatlock Quarry – Crater Explorer, n.d.).
The quarry spans roughly 900 meters in length, 400 meters in width, and reaches a depth of 110 meters.
What impact does a major domestic source of calcium carbonate have on the regional economy and surrounding industries?

