O.C. Tanner Co. has donated another $1 million to The Leonardo, bringing its total gifts to the planned science and art center to $2 million.

Bishop Carolyn Tanner Irish, a trustee in the Tanner Charitable Trust, made the announcement on Monday during The Leonardo's annual leadership luncheon.

"O.C. Tanner is proud to be part of this important project," Irish said. "We urge other individuals, foundations and companies to join us in ensuring The Leonardo receives the support it needs to open its doors on Library Square as soon as possible."

The Leonardo is planned as a first-of-a-kind science and art center with a multidisciplinary approach at the site of the former Salt Lake City Library. Museum officials say The Leonardo will infuse science with art to encourage unbounded curiosity, bold inquiry and daring innovation among young people and adults.

"O.C. Tanner has been a partner in The Leonardo from the beginning, when they gave us our very first $1 million gift," said Mary Tull, the center's executive director. "Just as that first contribution was instrumental in helping us develop a strong foundation for The Leonardo, this new donation will help propel the project to yet another exciting phase."