$300k in gold dust found during California home renovation

Workers installing an expensive heating and air system in a old Sacramento, California, home discovered a secret gold dust stash hidden beneath the floor grill.

The honest men turned in their discovery to the surprised homeowners.

Experts estimate that the gold dust, stored in 12 baby food jars, is worth $300,000.

The pricey HVAC installation cost around $6,500.

"I still can't believe it today," Steve Ottley of Clark & Rush, the HVAC installation company, told CBS Sacramento. "It's unreal. We kind of just looked at each other and said 'wow.'"

The homeowners, who requested anonymity in the press, don't know the origin of the gold dust, but are " handling their new gold just fine," CBS reports.

"Every time we find this type of thing, we are always trustworthy and upfront," said Mark Thyne of Clark & Rush, adding that while he can guarantee integrity and great customer service, he can't guarantee finding buried treasure with each installation.

The company did, however, find around $25,000 in gold coins during an installation in the 1980s.