A porous, crusty deposit of calcium carbonate that forms from mineral-rich hot or cold water, similar to tufa or travertine.
From 'calc-' (calcium) + 'sinter' (a deposit from mineral-rich water, from German 'Sinter'). Used in geology to describe specific types of calcium deposits.
Calcsinter creates those amazing mineral deposits you see around hot springs and geysers—layer by layer, calcium builds up into delicate, lacy formations that look almost like frozen fountains!
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