From a high-altitude mount, standard stone outcroppings look identical to slate deposits. Coralum nodes, however, feature distinct branching calcifications that emit a turquoise-to-indigo phosphorescent pulse visible even through moderate sea fog. During clear midday hours, the mineral cluster reflects light with a pearlescent sheen that separates it from standard coal nodes nearby.
Look for jagged, fan-shaped outcroppings protruding from shallow tidal flats and half-submerged reef arches. The geometry is noticeably sharper than standard round boulder formations. If a node does not display small, floating bioluminescent particle rings within a ten-meter proximity, it is ordinary stone. Approaching with a mining tool equipped will trigger the dedicated blue durability meter labeled specifically as "Coralum Deposit."
