Thursday February 2, 2012
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Transcript of Thursday February 2, 2012
ThursdayFebruary 2, 2012
(Mineral Resources)
The Launch PadThursday, 2/2/12
What is the most common group of
minerals?the silicates
The Launch PadThursday, 2/2/12
Name two examples of non-silicate oxides.sapphire and ruby
Name two examples of non-silicate sulfides.galena and pyrite
Name two examples of non-silicate sulfates.gypsum and baryte
Name two examples of non-silicate carbonates.calcite and malachite
Assignment Currently Open
Summative or Formative
Date Issued
Date Due
Date Into
Grade Speed
Last Day
Project: Fossils S1 1/9 1/13 1/18 2/1
Lab – Fossils F4 1/12 1/12
Quiz 16 S3 1/20 1/23 1/20 2/6
Lab – Rock Identification 1/24 1/24
Video Quiz – Rocks and Mineral 1/26 1/26
Quiz 17 S4 1/27 1/27 1/27 2/10
Activity – Rock and Mineral Properties F 1/30 1/30
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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
The most important metallic ore deposits are
generated from hydrothermal (hot-water) solutions.
These hot solutions contain metal-rich
fluids, and are associated with cooling magma
bodies.
Metallic Mineral Resources
These types of deposits include:
–vein deposits in fractures or
bedding planes.
Metallic Mineral Resources
These types of deposits include:
–disseminated deposits which are distributed throughout the
rock
Metallic Mineral Resources
Disseminated Chalcopyrite and Pyriteina Chlorite Matrix
Heavily disseminated cubic pyrite in black stilpnomelane
Non-metallic mineral resources make use of the
material’snonmetallic physical and
chemical properties.
Non-Metallic Mineral Resources
Two broad groups of non-metallic
mineral resources: •Building materials
(e.g., limestone, gypsum)
Non-Metallic Mineral Resources
Two broad groups of non-metallic mineral
resources: •Industrial minerals (e.g.,
fluorite, corundum, sylvite)
Non-Metallic Mineral Resources
The annual per capita
consumption of nonmetallic and
metallic resources for the U.S. is about 12
tons. About 97% are nonmetallic.
Energy resources (oil,
coal, and natural gas) exceeds 12
tons.
MineralResources
Final QuestionBy what process are the most important
metallic ore deposits generated?
These deposits are generated from hydrothermal (hot-water) solutions, which
contain metal-rich fluids, and are associated with cooling magma bodies.