monday january 3, 2011 (non-silicate minerals; mineral resources)

MondayJanuary 3, 2011

(Non-Silicate Minerals; Mineral Resources)

The Launch PadMonday, 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.

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

11/19 12/3

Project – Fossils 12/2 12/9

Lab: Properties of Minerals

12/13 12/14

Video Quiz – Rocks & Minerals

12/15 12/15

Project – Types of Rocks

12/15 1/5

The Non-Silicate MineralsThe oxides are a

family of minerals having structures

consisting of close-packed oxygen atoms with metal or

metalloid atoms occupying the

spaces in between.

Examples of oxides include:

hematite sapphire

ruby magnetite

The Non-Silicate MineralsThe sulfides are

minerals in which sulfur is

combined with one or more

metals.

Examples of sulfides include:

galena cinnabar

pyrite sphalerite

The Non-Silicate MineralsThe 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.

Examples of sulfates include:

gypsum baryte

glauberite anglesite

The Non-Silicate MineralsThe carbonate

minerals contain the carbonate group,

CO3, which is a carbon atom located with an equilateral triangle of oxygen

atoms.

Examples of carbonates

include:

calcite dolomite

malachite azurite

The Non-Silicate MineralsThe native elements

are minerals formed of a single chemical

element.

Examples of native elements

include:

gold copper

sulfurdiamond (carbon)

Table 2.1

Table 2.A

Australian sapphires depicting variations in cuts and colors.

Birthstones

Mineral ResourcesMineral 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

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.

Metallic Mineral Resources