Denver’s most dazzling gallery is about to get a serious glow-up. The Denver Museum of Nature & Science is turning its longtime Gems & Minerals Hall into a 50 percent larger, multi-sensory gallery and renaming it the Dea Family Gems & Minerals Hall in honor of longtime donors Cathy and Peter Dea. The museum says the $30 million renovation will close the current hall in early 2026, with a rebuilt and expanded space targeted to reopen in 2027. Museum leaders say the overhaul is less about sparkle and more about showing how minerals quietly power everyday life.
According to the Denver Museum of Nature & Science, the project will boost the hall’s footprint by roughly half and ranks among the museum’s largest permanent-exhibit efforts. The redesign is built around the theme “My World Is Made of Minerals,” pairing immersive settings with updated specimen displays and new interpretive technology. Museum officials say a transformational gift from the Dea family helped jump-start the $30 million campaign and move the project into detailed design.
The new gallery is set up as a chain of themed experiences: an Underground Adventure with realistic caves, a Mine Experience that includes a control station, a playful Mineral Mart that exposes the hidden minerals in everyday products, and a Constellation of Minerals that features an illuminated installation with more than 450 specimens, as reported by CBS Colorado. Visitors will also be able to step into a color room where more than 250 minerals fluoresce under ultraviolet light and visit story stations that share first-person accounts from miners, scientists, and environmental experts. A built-in treasure-hunt feature will send guests searching for rare “hero specimens” scattered through the gallery.
What Visitors Will See
Per the Denver Museum of Nature & Science, fan favorites such as the Crystal Grotto and Sweet Home Mine will stay put, even as the hall gets a full refresh. New headliners are on the way, including a six-foot rhodochrosite wall and the museum’s largest faceted gem, the Dali Topaz. Hands-on stations will invite guests to play with depth, temperature, and pressure to see how minerals form, then match their creations with real specimens from the collection. Designers say the rooms are being tailored for families and school groups, with touchable materials and large-scale visuals meant to make geology feel less like homework and more like exploration.
Why It Matters
"We don't typically think of the minerals that make up our favorite products," project lead Luke Fernandez said, pointing out that the average American uses roughly 20,000 pounds of minerals each year, a figure cited by CBS Colorado. The museum reports that the campaign has reached about 78 percent of its $30 million fundraising goal, a benchmark officials say helps lock in the 2026 to 2027 construction and reopening timeline. Curators say the exhibit will use Colorado geology as a starting point for conversations about mining, global supply chains, and the tradeoffs between resource demand and environmental stewardship.
When it opens, the Dea Family Gems & Minerals Hall will join the museum’s other renovated galleries, and museum staff says they will post ticketing details and closure updates on the site as construction moves ahead. More information on school programs and community events is expected as the museum finalizes its education plans ahead of the planned 2027 reopening.
