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chloropal

noun chlor·opal \ (ˈ)klōr¦ōpəl , -lȯ¦rō- \

Definition of chloropal

plural -s
: a yellowish green or greenish yellow clay mineral consisting of hydrous silicate of iron and aluminum and occurring in compact masses or earthy forms resembling opal

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Origin and Etymology of chloropal

German, from chlor- + opal

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