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Journal : Cognitia : International Engineering Journal

Mineralogy and Geochemistry of Copper Deposits in Samaenre Village, Tonra Sub-District, Bone District, South Sulawesi Province Wakila, Muhamad Hardin; Heriansyah, Andi Fahdli; Rizky Nurul Aulia; Muhaimin, Al
Cognitia : International Engineering Journal Vol. 1 No. 2 (2025): Cognitia : International Engineering Journal
Publisher : Candela Edutech Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63288/ciej.v1i2.8

Abstract

Samaenre Village has supergene copper mineralisation in rocks of the Kalamiseng Formation and geographically adjacent to diorite intrusions. The mineralisation outcrops are associated with alteration that changes the volcanic rocks of the Kalamiseng Formation. Previously, research was conducted on the characteristics of hydrothermal alteration and its alteration type in the Tonra area of Bone Regency, South Sulawesi Province. However, the research did not specifically examine the types of copper ore minerals and their associations and did not determine the copper content at the research location. The purpose of this study was to determine the types of copper ore minerals, associated minerals and copper  content in samples in the study area. The analytical method used in this research is first carried out megaskopis analysis to determine the physical properties of the sample. After that, laboratory analyses of mineragraphy, X-Ray Diffraction (XRD) and Atomic Absorption Spectrophotometer (AAS) were carried out. The results of megascopic analysis of the two research samples have a fresh blue colour and a fresh green colour with a brown weathered colour, there are calcite minerals and also tend to oxidise. Copper ore minerals found based on Mineragraphy and XRD analysis are Cuprorhodsite (CuFeRh2S4), Auricuprite (Cu3Au), Tenorite (CuO), Cuprite (Cu2O). The associated minerals found based on the results of Mineragraphy and XRD analysis are Cupalite (Al5Cu5), Diopside (CaMgSi2O6), Siderite (FeCO3), and Diopside (CaMgSi206). The copper (Cu) content in samples from the study area based on AAS analysis results ranged from 0.11 % to 0.17 % Cu
Alteration and Mineralisation of Sulphide Deposits in The Lipukasi Area, Barru Regency, South Sulawesi Province Wakila, Muhamad Hardin; Harwan; Thamsi, Alam Budiman; Aulia, Rizky Nurul; Aulia, Rieska Dewi
Cognitia : International Engineering Journal Vol. 1 No. 3 (2025): Cognitia : International Engineering Journal
Publisher : Candela Edutech Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63288/ciej.v1i3.15

Abstract

In the Lipukasi area, Barru Regency, South Sulawesi Province, sulphide deposits and complex alteration processes have been discovered. However, information regarding the alteration and mineralisation that has developed in this area is not yet available, so further research is needed to identify the types of alteration and mineralisation present in the Lipukasi area, Barru Regency, South Sulawesi Province. The purpose of this study was to determine the type of hydrothermal alteration and mineralisation that developed in the study area. The analytical method used in this research first carried out megaskopis analysis to determine the physical properties of the sample. After that, laboratory analyses of mineragraphy and X-Ray Diffraction (XRD) were carried out. The results of megascopic analysis of the two research samples are an igneous rock with a fresh grey colour, a weathered yellowish-brown colour, a massive structure, an intermediate rock type, a crystalline texture, namely holocrystalline, a granularity, namely phaneroparabolic, a relationship, namely equigranular, and a crystal shape, namely euhedral. The minerals found from the results of mineralographic and XRD analysis are Hematite, mafic mineral, goethite, silica mineral,  sulphide mineral (galena, chalcopyrite, pyrite, covellite), quartz, and kaolinite. So it can be concluded the minerals found in the study area are hematite (Fe₂O₃), mafic minerals, silica minerals, goethite (FeO₂H), galena (PbS), covellite (CuS), chalcopyrite (CuFeS₂), pyrite (FeS₂), kaolinite and quartz (SiO₂). Based on the indicated mineral composition, the type of alteration that developed in the study area is propylitic
Co-Authors A. F. Heriansyah A. S. Munir Abdul Salam Munir Agung Fiqriansyah Agus Ardianto Budiman Alam Budiman Thamsi Alfian Nawir Alfian Nawir Alfian Nawir Alfian Nawir Alfian Nawir Andi Fadhli Heriansyah Andi Fadli Heriansyah Andi Fahdli Heriansyah Annisa Annisa Annisa Annisa Anshariah . Anshariah Anshariah Anshariah, Anshariah Arif Nur Warkito Arif Nurwaskito Arifin, Mubdiana Aulia, Rieska Dewi Aulia, Rizky Nurul Awalludin, Nur Bakri, Hasbi Bakri, Suriyanto Chalik, Citra Aulian Citra Aulian Chalik E. P. Umar F. N. Yusuf Fahirah, Fiki Firdaus Firdaus F Firdaus Firdaus Firdaus, Muh. Aryan Firman Nullah Yusuf Fitria, Ade Nurul Gouw, Jihan Fitri Ramdita Putri H. Anwar Habibie Anwar Harwan Harwan Harwan Harwan, Harwan Herman, Nurhaedah Idris Juradi, Muhammad Ikhsan, Abdul Imran Imran Iqbal Rustam, Muhammad Jamal Rauf Husain Jamal Rauf Husain Jamal Rauf Husain Jamal Rauf Husain Jamaluddin . Jamaluddin Jamaluddin Jamaluddin Jamaluddin K. Idris Khadijah Rezkiani Tamar Maria . Maria Maria Miftah Farid Moh Salman Said Muhaimin, Al Muhammad Anas Muhammad Aswadi Muhammad Ikra Rambu Nawir, Alfian Nompo, Supardin Nur Asmiani Nurhawaisyah, Sitti Ratmi Nurhawaisyah, Sitti Ratmi Nurliah Jafar Nurliah Jafar, Nurliah Permatasari, Maya Pongkessu, Agriani Prasetyawati Umar, Emi R. M. Ismail Rahma, Kismu Rizky Nurul Aulia Rizky Nurul Aulia Romla Noor Hakim Saleh, Muh. Iqbal Sitti Ratmi Nurhawaisyah Syam, Nur Ilahi Syamsuddin Syamsuddin Syamsuddin Syamsuddin Syamsul Bakhri Tamar, Khadijah Rezkiani Windawati Windawati, Windawati Zulkifli Zulkifli