noun
a type of limestone formed from the consolidation of sand dunes by the action of the wind
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Aeolianite is a type of limestone formed from wind-blown sand and calcareous material.
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I learned in geology class that aeolianite is basically sand that got stuck together and turned into rock.
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Check out this cool rock made of aeolianite, it's like nature's sandcastle.
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Her resilience was as solid as aeolianite, standing strong against the winds of adversity.