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Three tables cover 37 of the most common rock types, with simple ways to distinguish them. ... Igneous: A tough, frozen melt with little texture or layering; mostly black, white and/or gray minerals; may look like lava (about igneous rocks) ... (using a magnifier, identifying minerals)
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geology.about.com/library/bl/blrockident_tables.htm
geology.about.com/library/bl/blrockident_tables.htm
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The same is true of identifying rocks and minerals. ... Identifying rocks is less critical in some ways than identifying minerals. A dense, gray mineral is either galena or it isn't. On the other hand, sandstone can grade into siltstone, limestone into dolostone, gabbro into diorite.
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www.uwgb.edu/dutchs/PETROLGY/IdentifyRxMin.htm
www.uwgb.edu/dutchs/PETROLGY/IdentifyRxMin.htm
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Difference between rocks & minerals ... Color – this varies depending on the chemicals present and is the least informative in identifying a mineral variety...
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www.rocksforkids.com/RFK/identification.html
www.rocksforkids.com/RFK/identification.html
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RocksForKids is The web site about rocks and minerals written for kids with the most Links to kid-friendly rock information on the Web ... This site is for kids of all ages who love rocks. Here you will find out stuff about rocks & minerals and where to go to find out more. If you already collect rocks then this is the...
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www.rocksforkids.com/
www.rocksforkids.com/
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Kickstart your child's interest in rocks and minerals ... At the amateur level, identifying rocks is a fairly straightforward process, perfect for young rock hounds. You look for visual clues, answer a series of questions and, with the help of a rock and mineral guide, draw your conclusions.
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familyfun.go.com/parenting/learn/activities/feature/fam...
familyfun.go.com/parenting/learn/activities/feature/famf010302_rock/famf010302_rock3.html
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PAGE 1 OF 1 ; Rock Key ; Read the descriptions below and choose the one that most closely describes ... Home Species Habitat Place Map Learning Zone Identifying rocks, minerals and fossils / Rock key...
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www.exploringthepotteries.org.uk/Nof_website1/natural_h...
www.exploringthepotteries.org.uk/Nof_website1/natural_history_static_exhibitions/identifying_rock_minerals_and_fossils/pages/irmf_rock_key.htm
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Q: I have a clear rock with blue streaks. Do you know what kind it is-Ashia ... Here's his reply: "Most clear rocks, or probably in this case, minerals, are either quartz, calcite, or gypsum. The blue streaks are probably an impurity such as a derivative of cobalt or maybe copper."
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www.wonderquest.com/IdentifyRocks.htm
www.wonderquest.com/IdentifyRocks.htm
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Igneous Rocks ... Sedimentary Rocks ... Metamorphic Rocks...
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www.rockhounds.com/rockshop/rockkey/index.html
www.rockhounds.com/rockshop/rockkey/index.html
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If you are not sure what kind of rocks are near you, the first thing to do is contact your state Geological Survey. You can order geologic maps of almost anywhere in the country. Aside from that, let's plunge right into the three main categories.
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njminerals.org/moreid.html
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