NASC 130 Essentials3_ch12

Gold silver copper lead zinc iron aluminum non

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: conductivity Essentials of Geology, 3rd edition, by Stephen Marshak Chapter 12: Riches in Rock: Energy & Mineral Resources What is a Metal? Properties due to crystal structure and bonding Properties Metals may be extremely hard (titanium) or soft (copper) Metals Ductile – able to be drawn into thin wires Malleable – able to be pounded into thin sheets Malleable Essentials of Geology, 3rd edition, by Stephen Marshak Chapter 12: Riches in Rock: Energy & Mineral Resources What is a Metal? Three categories: Native – naturally occur in pure form Native Copper (Cu) Silver (Ag) Gold (Au) Precious – rare and economically important Gold (Au) Silver (Ag) Platinum (Pt) Base – commonly used in industry Iron (Fe) Lead (Pb) Zinc (Zn) Tin (Sn) Essentials of Geology, 3rd edition, by Stephen Marshak Chapter 12: Riches in Rock: Energy & Mineral Resources Metals Native metals are too rare to be mine sources Instead, we use minerals that contain metals Instead, contain Metal ions are bonded to non-metallic elements Ore minerals rarely resemble the pure metal Ex. copper comes from ores consisting of azurite (blue) and malachite (green) Essentials of Geology, 3rd edition, by Stephen Marshak Chapter 12: Riches in Rock: Energy & Mineral Resources Smelting Releases metals from the mineral Releases Different minerals require… Different Different smelting techniques Different temperatures Non-metallic waste is called slag Steel – iron smelted with carbon Alloys ar...
View Full Document

This document was uploaded on 11/25/2013.

Ask a homework question - tutors are online