| Hydrocarbons,
Fuels & Natural Resources Collection |
S$72 |
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Illustrates many of the natural resources
available to humans. These include forms of coal and petroleum important
as fuel sources as well as other important mineral resources. Set contains
15 natural specimens approximately 1 1/2", number coded. |
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| Ores
of Common Metals Collection |
S$72 |
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The term "ore" is used in connection
with a rock or mineral mass when it contains enough of an element or
compound to make it economically feasible to mine. 15 specimens of the
more important ores are included. Approximately 1 1/2". |
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| Scale
of Hardness Collection with Diamond |
S$72 |
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This collection is the traditional Mohs Scale
which assigned a "hardness" to ten key minerals with talc #1
(the softest) and diamond #10 (the hardest).
Ten specimens approximately 1" x 1 1/2"
(except diamond),
number-coded.
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Fossils
and Geologic Time Chart
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This
chart is a graphic portrayal of the Geologic Time Scale from Precambrian
to the present. Representative natural fossils from the corresponding
geologic periods are included. Contains natural fossil specimens on an
informational chart in a 23-1/2" x 15-1/2" x 1" wooden
frame.
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