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Definition of Congo gum
1. Noun. Copal found usually as a fossil.
Lexicographical Neighbors of Congo Gum
Literary usage of Congo gum
Below you will find example usage of this term as found in modern and/or classical literature:
1. Complete Mineral Catalog by Warren Mathews Foote (1909)
"congo gum. Clear light yellow. .40 Silicon, Si 249+ Quartz, Rock Crystal.
Si dioxide, clear colorless. .50 250 Opal, ..."
Other Resources:
