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But in Last Chance Lake, calcium combines with plentiful carbonate as well as magnesium to form dolomite, the same mineral that forms picturesque mountain ranges.

The secret to finally growing dolomite in the lab was removing defects in the mineral structure as it grows.

Their formation is most common in easily erodible karst terrains with carbonate rocks, like limestone or dolomite, or minerals known as evaporites, like salt and gypsum.

The markings were deeply incised into dolomite rock in locations close to the burials in the Dinaledi and Hill chambers.

The marble walls of Noonday dolomite and the naturally cemented stones of Mosaic Canyon flanked the two-mile path through a flood-scoured chasm to a series of dry falls.