(Non-Silicate Minerals; Mineral Resources) Monday January 3, 2011 (Non-Silicate Minerals; Mineral Resources)

What is the most common group of minerals? The Launch Pad Monday, 1/3/11 What is the most common group of minerals? the silicates

Announcements Please remember these two important points: You cannot remediate your semester final exam. After the first semester ends, you cannot go back and improve your grade on any six-weeks of the first semester.

Five Multiple Choice Questions on Plate Tectonics 11/11 11/12 Assignment Currently Open Pages Date of Notes on Website Date Issued Date Due Five Multiple Choice Questions on Plate Tectonics 11/11 11/12 Project – Decade Volcanoes 11/15 11/19 Project – Killer Earthquakes 11/17 12/1 Project – Greatest Mountains 12/3 Project – Fossils 12/2 12/9 Lab: Properties of Minerals 12/13 12/14 Video Quiz – Rocks & Minerals 12/15 Project – Types of Rocks 1/5

The Non-Silicate Minerals hematite sapphire The oxides are a family of minerals having structures consisting of close-packed oxygen atoms with metal or metalloid atoms occupying the spaces in between. ruby magnetite Examples of oxides include:

The Non-Silicate Minerals galena cinnabar The sulfides are minerals in which sulfur is combined with one or more metals. Examples of sulfides include: pyrite sphalerite

The Non-Silicate Minerals gypsum baryte The sulfates minerals have a crystal structure in which a sulfur atom is in the center of a tetrahedral arrangement with four oxygen atoms at the corners. glauberite anglesite Examples of sulfates include:

The Non-Silicate Minerals calcite dolomite The carbonate minerals contain the carbonate group, CO3, which is a carbon atom located with an equilateral triangle of oxygen atoms. malachite azurite Examples of carbonates include:

The Non-Silicate Minerals gold copper The native elements are minerals formed of a single chemical element. diamond (carbon) sulfur Examples of native elements include:

Table 2.1

Table 2.A

Australian sapphires depicting variations in cuts and colors.

Birthstones

Mineral Resources Mineral resources are Earth’s storehouse of useful minerals that can be recovered for use. Mineral reserves are already-identified deposits of minerals that can be extracted. Ores are useful metallic minerals that can be mined at a profit. Economic factors may change and influence a resource.

An underground halite (salt) mine Figure 2.22

Hematite, an ore of iron

Metallic Mineral Resources Gold, silver, copper, mercury, and lead are examples of metallic mineral resources. Concentrations of these desirable materials are produced by both igneous and metamorphic processes.