Geologists use the minerals present in a rock to identify not only the type of rock (igneous, sedimentary, or metamorphic) but also the specific name of the rock (for example, granite, chert,

amphibolite
). Of the many physical properties that geologists use to identify minerals in the field, choose one that you think would be the most useful. (Refer to your reading for the week and your explorations at the Smithsonian website.) Share your choice and your reasoning behind this selection to try and convince your classmates of your choice

.

1. Worth 10 points total.
2. Must be at least 6 sentences in length. Must respond to every aspect of the weekly prompt above, using information/facts from our weekly reading, lecture and research.
3. Must include the source information in an APA formatted reference list and APA
   
   intext
   citations throughout the post. (This is 2 out of the 10 points of the post.)
4. Be in your own words.