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Originally Posted by legotech25
It seems to me that rigolith is a coined phrase, as the actual material appears to be textured acrylic. It is easily obtainable through Midland Plastics also.
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Actually its spelled regolith, and it is actually what the surface of the moon is covered in. Here is a short description of it from wikipedia: Regolith (Greek: "blanket rock") is a layer of loose, heterogeneous material covering solid rock. It includes dust, soil, broken rock, and other related materials and is present on Earth, the Moon, some asteroids, and other planets. The term was first defined by George P. Merrill in 1897 who stated, "In places this covering is made up of material originating through rock-weathering or plant growth in situ. In other instances it is of fragmental and more or less decomposed matter drifted by wind, water or ice from other sources. This entire mantle of unconsolidated material, whatever its nature or origin, it is proposed to call the regolith."