Sand
Sand is a naturally-occurring granular material comprised of finely divided rock and mineral particles.

In an alternate timeline, Commander Charles Tucker III and Sub-Commander T'Pol had their honeymoon in cargo bay 3 of , which Tucker filled with sand they dug up from a passing asteroid. ()

In 2269, while traversing the deserts of Lactra VII, Leonard McCoy complained that his shoes were full of sand, prompting Spock to note his apparent lack of scientific interest in his surroundings. ()

By 2285, the atmosphere of Ceti Alpha V was dominated by, among other things, sand. ()

In 2354, Benjamin Sisko walked through hot sand on Gilgo Beach carrying lemonades and then stepped on Jennifer's towel to cool his feet. ()

Burning noranium could be extinguished with sand. ()

The microbrain, an inorganic yet sentient lifeform discovered in 2364, lived in an area it referred to as "wet sand" – a soil layer near the water table of the planet Velara III. ()

In 2366, Lieutenant Commander Geordi La Forge's shoes got filled with sand while he was on Galorndon Core. He complained about this to the Romulan Centurion Bochra, who had taken him prisoner. When Bochra said that he was lying about there being a fleet of Federation ships in orbit, La Forge responded that he never lied when he had sand in his shoes. ()

Sand could be used in art to make sculptures. In 2378, Q claimed that the Continuum had "crumbled like a Gelbian sand sculpture" when he threatened to leave them unless they restored 's powers. ()

Crossing a line of sand in a sumo match disqualified a wrestler. According to Chakotay and Tuvok, Takashi lost the 77th Emperor's Cup because his knee broke the sand, though Kathryn Janeway remembered differently, stating that Takashi won that contest. ()

Ensign D'Vana Tendi was unfamiliar with sand before 2380, when she encountered it in a holographic recreation of a Hawaiian . Ensign Brad Boimler complained that sand "gets everywhere" and gave him a rash. ()

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