Reaction of Granite to HCl
Source/Author: Scott BrandeSubject: physical geology; mineral properties
Description: A piece of granite is tested for reaction to dilute, cold, HCl. As granite is composed of a number of minerals, this "acid test" should reveal whether or not significant calcite is present in this rock. Without specific instruction, many students would not be able to predict whether a chemical reaction should be seen, or not. Good example of experimental science to determine an answer by observation.
Duration: 00:00:24
Comments: Appropriate for an introductory earth science lecture and laboratory course that covers rock and mineral properties.
URL: http://youtu.be/AZ9WWVN1E2k
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