Big Rock Crystals on Elizabeth Street in Okotoks was broken into early Thursday morning.
Owner Michelle Baburic says the timeline was easily nailed down through security camera footage.
"So, they broke in at 3:29 this morning and they were out by 3:30 and my guess is they scooped about $20,000 to $30,000 in that one minute," she says.
Baburic says they took an ammolite worth about $17,000.
She's hoping someone in the area may have security camera footage of any suspicious activity around the time of the thefts.
If so, you're asked to contact the Okotoks RCMP.