Oolitic_aragonite_sand
Oolitic aragonite sand
Sand composed of an egg-like form of aragonite
Oolitic aragonite sand is composed of the calcium carbonate mineral, aragonite, with an egg-like shape ("oolitic" from the Ancient Greek word ᾠόν for "egg") and sand grain size. This sand type forms in tropical waters through precipitation, sedimentation, and microbial activity, and is indicative of high energy environments.[1] The production of oolitic aragonite sand in the Bahamas surpasses anyplace else in the world.[2] Changes in seawater chemistry and paleoenvironments can be interpreted by the sand's chemical composition and structure.[3]