Disk

A disk is a feature consisting of a naturally generated roughly circular deposit of a soil-like block under or next to bodies of water.

Description
Disks are generated at the Euclidean distance n (i.e. x2+y2=n2) from a given central block, creating a circular-looking pattern of the given block with a radius of n. They are commonly seen throughout rivers, lakes, swamps and mangrove swamps.

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