What Is a Pick Rock Called What Is a Blue Rock
Igneous
Igneous Rocks: Photos, descriptions and facts about intrusive and extrusive igneous rocks.
Metamorphic
Metamorphic Rocks: Photos, descriptions and facts about foliated and non-foliated metamorphic rocks.
Sedimentary
Sedimentary Rocks: Photos and facts about clastic, chemical and organic sedimentary rocks.
Geodes
Geodes look like ordinary rocks on the outside but can be spectacular inside!
Rock Tumbling
Rock Tumblers - All about rock tumblers and rock tumbling. Read before you buy a tumbler.
Gifts That Rock
Gifts That Rock - What are the most popular gift items in the Geology.com store?
Tumbled Stones
Tumbled Stones are rocks that have been rounded, smoothed and polished in a rock tumbler.
Fluorescent Minerals
Fluorescent Minerals and rocks glow with spectacular colors under ultraviolet light.
Lapis Lazuli
Lapis Lazuli - a metamorphic rock and the most popular blue opaque gemstone in history.
Curling Stones
Curling Stones are made from a special type of granite, found at just a few locations worldwide.
Hardness Picks
Hardness Picks - Test for hardness with precise and easy-to-use hardness picks.
Quartzite
Quartzite a nonfoliated metamorphic rock composed almost entirely of quartz.
Rock Salt
Rock Salt is a sedimentary rock composed of the mineral halite. It has many uses!
Trap Rock
Trap Rock is a name applied to any dark-colored igneous rock used to produce crushed stone.
Sand Grains
A Grain of Sand Gallery of sand grains through a microscope by Dr. Gary Greenberg.
Puddingstone
Puddingstone - a conglomerate with clasts that contrast in color with the matrix. Alamy Images.
Geology Dictionary
Geology Dictionary - contains thousands of geological terms with their definitions.
Charoitite
Charoitite - a purple metamorphic rock dominated by the mineral charoite. It is used as a gem.
Shale
Shale The rock that is quickly transforming the energy industry.
Difficult Rocks
Difficult Rocks Elementary students find lots of rocks that you will not be able to identify.
Don*t Go To Jail
Rock Collectors must know the rules before removing rocks from public and private property.
Mariposite
Mariposite - a name used for green chromium-rich micas and certain rocks colored by them.
Coquina
Coquina - A porous limestone composed almost entirely of fossil debris.
Soapstone
Soapstone is a talc-rich rock with properties that make it suitable for a variety of projects.
Rock Art
Rock Art People have been producing rock art for thousands of years. A world-wide collection.
Uses of Granite
Uses of Granite The rock used everywhere from the kitchen to the facing stone of skyscrapers.
Unakite
Unakite is a metamorphosed granite composed of green epidote and pink orthoclase.
Hand Lens
Hand Lens A 10-power folding magnifier in a metal case. A frequently used lab and field tool.
Oil Sands
Oil Sands contain oil in the form of bitumen - a major oil resource that can be difficult to produce.
Siltstone
Siltstone is a sedimentary rock composed mainly of silt-sized particles.
Caliche
Caliche is a lithified layer in soil or sediment. It is considered to be a sedimentary rock.
Rocks on Mars
Rocks on Mars Many of the rocks found on Mars are not very different from Earth rocks.
Geology Tools
Geology Tools - Rock hammers, field bags, hand lenses, maps, hardness picks, gold pans.
Rock-Forming Minerals
Rock-Forming Minerals - most of Earth*s crust is made up of a small number of minerals.
Chalk
Chalk is a variety of limestone formed from fine-grained marine sediment known as ooze.
Forensic Geology
Forensic Geology My students come to class thinking that dirt is dirt and sand is sand...
Dacite
Dacite - a light-colored extrusive igneous rock intermediate between rhyolite and andesite.
Diabase
Diabase - the rock selected for Stonehenge and transported 240 miles in 2100 BC.
Azurite Granite ?
Azurite Granite? Found at the base of K2, the second highest mountain in the world.
Limestone
Limestone A versatile rock used in cement, food, paint, paper, drugs, concrete & more!
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Source: https://geology.com/rocks/
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