psammitic

/səˈmɪtɪk/
adjective
  1. Relating to or consisting of sand or sandy soil.
    • The psammitic texture of the desert made it difficult for plants to take root.
    • Geologists classified the rock as psammitic because of its high sand content.
    • The farmer tested the psammitic soil and found it drained water too quickly for most crops.
Antonyms
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