Secara administratif lokasi eksplorasi tertetak di Kecamatan Pugung, Kabupaten Tanggamus, Provinsi Lampung. Secara geografis dibatasi oleh koo(dinat 104° 50' - 104° 54' Bujur Timur dan 5° 22' - 5° 27' Lintang Selatan. Stratigrafi daerah penyelidikan tersusun atas : Saluan Batuan Meta Sedimen (Pzms), terdiri dari batugamping meta, kuarsit, sekis, satuan batuan ini digolong…
Sapphires in Upper Bari to occur in active Busang stream deposits. The sapphires gravel deposits associates with heavy minerals such as zircon, garnet, epidote, ilmenite, chrom diopside, chromite and magnetite. The colour varies from red-rose to light-blue, greenish blue, greenish grey, pink, and white. Some of the sapphires are opaque but suitable for cabochon polished gemstone…