![](graphics/lulu.gif) | "What we've been discussing, Lou, is whether a rock's mineral composition can tell us if it is igneous, sedimentary and metamorphic!" |
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![](graphics/lou.gif) | "Yes, that's dawned on me!!" |
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"What conclusions have you reached, Lou?!" | ![](graphics/lulu.gif) |
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Question 1: In the absence of all other information, can the minerals that a rock contains tell you it must be igneous? If your answer is 'yes', give an example of a mineral whose presence tells you the rock must be igneous.
Question 2: In the absence of all other information, can the minerals that a rock contains tell you it must be sedimentary? If your answer is 'yes', give an example of a mineral whose presence tells you the rock must be sedimentary.
In the absence of all other information, can the minerals that a rock contains tell you it must be metamorphic? If your answer is 'yes', give an example of a mineral whose presence tells you the rock must be metamorphic.
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To check your answers and get additional hints and information, click on the link.![](graphics/button_s.gif) |
"If your answer to any of the three questions was 'No', then clearly we have some more investigating to do!!" | ![](graphics/lulu.gif) |
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