Gold ores and their minerals

Gold ores are natural mineral formations containing gold in varying quantities. Gold is typically found in combination with other minerals and elements, and the composition of gold ores can vary widely. Common minerals associated with gold ores include quartz, pyrite, arsenopyrite, chalcopyrite, and tellurides like calaverite and sylvanite. The presence and proportions of these minerals affect the extraction process and determine the overall value and processing techniques required to recover the gold. Gold ores are sought after for their economic value and are mined and processed to extract the precious metal for various applications, including jewelry, electronics, and currency.

1. GOVERNMENT ENGINEERING COLLEGE, SECTOR 28, GANDHINAGAR “Gold ores and it’s minerals” Subject- Mineral Processing Presented by Yash Shind e D2D 24 Guide by Dr. Minal Dani Prof. Renu Ghanghas

2. Content- Introduction Types of ores Properties of Gold Application of Gold Gold mines in India Gold mines in world Reference

3. Introduction- Gold is a chemical element with the symbol Au (from Latin: aurum) and atomic number 79. This makes it one of the higher atomic number elements that occur naturally . In simple words it is a yellow metallic element that occurs naturally in pure form. [1]

4. Types of Gold ores- Gold Ores Chemical Formula Images Calaverite AuTe Aurostibnite AuSb 2 Maldonite Au 2 Bi 1-Luster: Metallic 2-Diaphaneity: Opaque 3-Tenacity: Brittle 4-Mass: 452.17 g/ mol 1-Mass: 440.47 g/ mol 2-Luster: metallic 3-Diaphaneity: Opaque 4-Tenacity: Brittle 1-Luster:Metallic 2-Diaphaneity-Opaque 3-Density-15.6g/cm³ 4-Crystal System: Isometric Properties [2,3,4]

5. Properties of Gold- Being very good conductors of heat and electricity, the metal does not get affected by air and most reagents. The element is corrosion resistant and is present in deposits of alluvium and veins. To provide more strength to the metal, another soft metal is alloyed to it. Melting point is 1064.18°C. Boiling point is 2836°C . Density of gold is 19.3 g /cm−3 [2]

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7. Application- Coins Jwellery Medals Electronics Medicine & Dentistry [4]

8. [5-6] Gold mines in India

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10. [7] Gold Mines in India

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12. Reference- 1) https://en.m.wikipedia.org/ 2) https://assignmentpoint.com 3) https://www.mindat.org 4) https://www.mecmining.com 4) https://byjus.com/ 5) https://www.bullionbypost.co.uk/ 6) http://mygoldguide.in/ 7) http://mapsofindia.com/ 8) https://www.gold.org