University of Michigan Researchers Resolve 200-Year Dolomite Problem by Simulating Geological Defect Dissolution

Researchers at the University of Michigan finally grow dolomite in a lab. Discover how "washing away" atomic defects solves a 200-year-old geological mystery.

By: AXL Media

Published: Apr 21, 2026, 8:51 AM EDT

Source: Information for this report was sourced from University of Michigan

Cracking a Two Century Geological Enigma

For more than 200 years, the scientific community has been baffled by the "Dolomite Problem," a phenomenon where a mineral found abundantly in ancient rock formations appears nearly impossible to replicate in modern laboratory conditions. While dolomite is a primary component of iconic landscapes such as the Italian Dolomites and Niagara Falls, it is rarely observed forming in contemporary natural environments. A recent breakthrough by researchers at the University of Michigan and Hokkaido University has finally bridged this gap, providing a theoretical and experimental framework for how this elusive crystal develops over geological time.

The Structural Obstacles to Mineral Growth

The difficulty in growing dolomite stems from its complex atomic arrangement, which consists of meticulously alternating layers of magnesium and calcium. In typical laboratory attempts, these elements often attach to the crystal surface in a disorganized, random fashion rather than forming the required ordered layers. These structural defects create a physical barrier that stalls further growth. According to the research team, the process is so inefficient under stable conditions that it could theoretically take up to 10 million years to form a single well-ordered layer of the mineral.

Nature as a Self Correcting Growth Mechanism

The pivotal discovery made by the team suggests that dolomite growth relies on environmental instability rather than constant conditions. In nature, cycles such as tidal changes, seasonal rainfall, or fluctuations in water levels act as a "reset" button for the crystal surface. When the mineral is exposed to water during these cycles, the unstable atoms that form structural defects are the first to dissolve. This natural cleaning process removes the flaws, leaving behind a pristine surface where new, correctly aligned layers can attach, significantly accelerating a process that otherwise appears stagnant.