Definition
Origin
Discoverer
Etymology
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Other Categories
Hyaloclastite is an aggregate of fine, glassy debris formed by the sudden contact of hot, coherent magma and cold water or water-saturated sediment
Fine Grained Rock, Opaque Rock
Marl is an unconsolidated sedimentary rock consisting of clay and lime
From Old French marle, from Late Latin marglia
Fine Grained Rock, Opaque Rock