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www.dnr.state.mn.us/rocks_minerals

Questions? Call 651-296-6157 or 888-MINNDNR (646-6367) Email us: [email protected]

geology.com/articles/difficult-rocks

Children Find the Most Difficult Rocks. If you are highly skilled at rock identification, I am willing to bet that there is a location near your home where your hand-specimen identification skills can be put to a rigorous test.

www.thoughtco.com/rock-identification-tables-1441174

To identify a rock, think like a geologist and examine its physical characteristics for clues. The following tips and tables contain characteristics that will help you identify the most common rocks on earth. Rock Identification Tips. First, decide whether your rock is igneous, sedimentary or metamorphic.

geology.com/rocks

Photographs and information for a large collection of igneous, metamorphic and sedimentary rocks. Geology.com ... Rock and Mineral Kits. Rock, Mineral and Fossil Collections. ... Difficult Rocks Elementary students find lots of rocks that you will not be able to identify.

www.superiortrails.com/rock-hound3.html

I also show here some recent agate finds and some agate-wanna-bes that some will mistakenly identify as an agate. My identification and descriptions rely on a variety of sources, all of which are listed in the recommended agate & beach rock books section at the bottom of this page. The book "Rocks & Minerals" by Bob and Dan Lynch was ...

www.dot.state.mn.us/materials/manuals/geotechnical/Appendix A...

Appendix A. Geology of Minnesota "Geology is the study of the planet Earth the materials of which it is made, the - ... the oldest rocks in Minnesota are gneisses from the Minnesota River Valley, which have been ... minerals plagioclase, olivine and pyroxene had these minerals altered to ...

www.dnr.state.mn.us/education/geology/digging/rocksmin.html

Information on different types of rocks and minerals found in Minnesota with pictures. This is an excerpt from the Minnesota Department of Natural Resources Division of Lands and Minerals educational publication, Digging Into Minnesota Minerals. It is mea

gsmmn.mngeology.net/content/rock-and-mineral-identification

Rock and Mineral Identification. At the Geological Society of Minnesota, we frequently receive questions about rock and mineral identification. As it often difficult to distinguish between the various rock and mineral types using a photograph; instead, feel free to bring it to one of our upcoming GSM Lectures.

www.superiortrails.com/rock-hound.html

See our pictures and descriptions on picking and identifying Lake Superior agates, mineral gem stones, and various rocks along Lake Superior's beaches in Minnesota, Ontario, Michigan Upper Peninsula, and Wisconsin. Also pictures of agates found along Lake Superior beaches.

www.pinterest.com/pin/569846159077393152

"Information on different types of rocks and minerals found in Minnesota with pictures. This is an excerpt from the Minnesota Department of Natural Resources Division of Lands and Minerals educational publication, Digging Into Minnesota Minerals." "Rocks and Minerals-- MN DNR"