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Tin is one of the abundant resources in Indonesia, where its distribution along streams and plains depends on the characteristics of the soil layer, such as in the Belitung, Bangka, Kundur, Sumatra…
The widespread mafic-ultramafic complexes in the Earth are well-known as their hosting Ni-Cu-PGE ore deposits, and their petrogenesis and mineralization have become hot issues in the geological stu…
Tujuan dari penelitian ini adalah untuk mempelajari stabilitas warna hasil ekstraksi kulit kayu secang (Caesalpinia sappan L.) akibat perlakuan suhu dan pH. Penelitian ini telah dilaksanakan di Lab…