Gabon Back to Origins · Back to G Known for (stones & minerals) Manganese ores and manganese-rich deposits. Iron occurrences and banded iron formations in older terranes. Crystalline granite and metamorphic rocks used as construction stone. Geology snapshot Gabon includes ancient Precambrian basement rocks and sedimentary basins, supporting significant metal resources and a range of hard-rock materials suitable for aggregate and dimension stone. Stone uses & sourcing notes Hard-rock quarries can supply durable aggregate and structural stone. For decorative stone, request consistent lots and verify finish options for humid climates. Specimen material should include locality/provenance notes for collector value. Explore related pages Browse more: G countries or return to Origins.