Fig. 4. Backscattered electron microscope micrograph of the Cry1 horizon of Pedon B1 at the 10- to 25-cm depth (length of bar: 50 µm) shows a quemosaic fragment containing a quesparite grain with a central void (CV). The EDS spectrum shows the predominance of Ca, O, and Mg in the composition of quesparite grains.

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