Ma'anar ƙamus na kalmar "glauconite" wani ma'adinai ne mai launin kore wanda yawanci ana samuwa a cikin duwatsu masu rarrafe na ruwa. Ma'adinan potassium silicate na baƙin ƙarfe ne mai ruwa wanda ke samuwa a sakamakon sauye-sauyen wasu ma'adanai a cikin yanayin ruwa. Ana amfani da Glauconite sau da yawa a matsayin alamar tsohuwar yanayin teku kuma ana iya amfani dashi azaman taki saboda yawan abun ciki na potassium.