What Is Ore What Is Rock

  • Rock step

    Rock step

    Rock step (also called break step) may refer to one of several similar dance name refers to the rocking action during the move: the weight is transferred from one foot to another and then back. It is used in a number of dances, such as East Coast Swing, Zydeco, Lindy Hop, Tango.. Most often it is a twostep dance move executed in two beats of music.

  • Glad You Asked: How Do Geologists Know How Old a Rock Is ...

    Glad You Asked: How Do Geologists Know How Old a Rock Is ...

    Geologists generally know the age of a rock by determining the age of the group of rocks, or formation, that it is found in. The age of formations is marked on a geologic calendar known as the geologic time scale. Development of the geologic time scale and dating of formations and rocks relies upon two fundamentally different ways of telling ...

  • Mineral Gallery

    Mineral Gallery

    Transparency, also known technically as diaphaneity, is a function of the way light interacts with the surface of a are only three possible interactions. If the light enters and exits the surface of the substance in relatively undisturbed fashion, then the substance is referred to as the light can enter and exit the surface of the substance, but in a disturbed ...

  • Stone Age Art: Prehistoric Culture

    Stone Age Art: Prehistoric Culture

    Stonehenge Stone Circle. The world's most famous stone circle. What are the Main Types of Stone Age Art? Before answering this, it's important to realize that our concept of "art" is often limited to images we see in books and museums, or at least to those forms that relate to our modern includes Greek art, as well as famous works from the Renaissance, all the way up to ...

  • What is physical weathering? | American Geosciences Institute

    What is physical weathering? | American Geosciences Institute

    Sometimes called mechanical weathering, physical weathering is the process that breaks rocks apart without changing their chemical composition. These examples illustrate physical weathering: Swiftly moving water Rapidly moving water can lift, for short periods of time, rocks from the stream bottom. When these rocks drop, they collide with other rocks, breaking tiny pieces off.

  • Rock Salt

    Rock Salt

    Rock salt is also applied to road beds in cold climates to help reduce the freezing point of water on the road, thereby allowing it to not freezeover at 0 deg. C (although I have no firsthand knowledge of this since I live in Hawaii).

  • What Is Hardscape?

    What Is Hardscape?

     · The term "hardscape" refers to all of the nonliving elements in landscaping, such as a brick patio, a stone wall, or a wooden arbor. It is one of the two major subegories of landscaping, the other being is all of the living and organic elements in a , such as trees, flowers, and grass.

  • Geology


    Introduction Properties Common rockforming minerals Economic minerals. Hardness Definition. A measure of the ease with which a smooth surface of a mineral can be scratched, or of its resistance to abrasion. In 1822 the Austrian mineralogist Friedrich Mohs devised a scale based on one mineral's ability to scratch another.

  • Hyrax | African Wildlife Foundation

    Hyrax | African Wildlife Foundation

    Rock hyraxes do not dig burrows. They live in colonies of about 50 in the natural crevices of rocks or boulders. These groups typically consist of one territorial male and about 20 s and their young. Rocky hyraxes are active in the daytime and can be seen feeding or sunning themselves near the entrances to their shelters.

  • Rocks and Minerals – Utah Geological Survey

    Rocks and Minerals – Utah Geological Survey

    Public Information Series #50. Slides of the Fluorspar, Beryllium, and Uranium Deposits at the Spor Mountain, Utah, by David A. Lindsey, Geological Survey Openfile Report 980524. (outside link) New Utah minerals ()

  • What is a fault and what are the different types?

    What is a fault and what are the different types?

    A fault is a fracture or zone of fractures between two blocks of rock. Faults allow the blocks to move relative to each other. This movement may occur rapidly, in the form of an earthquake or may occur slowly, in the form of creep. Faults may range in length from a few millimeters to thousands of kilometers. Most faults produce repeated displacements over geologic

  • What Are the Five Properties of Rocks?

    What Are the Five Properties of Rocks?

     · By Staff Writer Last Updated March 31, 2020. Follow Us: The five physical properties of rocks are color, luster, shape, texture and pattern. Not all rocks have the fifth property of pattern. These properties are visible and/or tactile. The color of a rock describes the hue or tone of the rock. Black, red, green or blue may be used to describe ...

  • What is ALH 84001?

    What is ALH 84001?

    ALH 84001 is a meteorite, a rock that fell to Earth from space. It was found in December 1984 in Antarctica by a meteoritehunting expedition. When it was found, ALH 84001 weighed about 4 and 3/4 pounds ( kilograms). It was shaped like a rounded brick or a large potato, about 6 inches long by 4 inches by 3 inches, and was partly ...

  • Boron


    Boron is a naturally occurring element that is found in oceans, sedimentary rocks, coal, shale, and some soils. There is a narrow margin between boron deficiency and toxicity in some plants. The risk of adverse effects of high boron concentrations on aquatic ecosystems is small because boron levels are generally low, and below the noobservedeffect concentration .

  • List of rock types

    List of rock types

    List. Sorted by name; initial letter means Igneous, Sedimentary or Metamorphic rocks.. A I Andesite – an intermediate volcanic rock M Anthracite – a form of hard coal B S Banded iron formation – a fine grained chemical sedimentary rock composed of iron oxide minerals S Bauxite – the main ore of is mostly aluminium oxide. I Basalt – grey/black finegrained rock from lava ...

  • The Learning Zone: What is a Mineral?

    The Learning Zone: What is a Mineral?

    The Learning Zone: What is a Mineral? What is a mineral? The quiz! By now you should understand what a mineral is. Look at the objects below and remember what defines a mineral. Once again, a mineral is a naturally occurring inorganic solid, with a definite chemical composition, and an .

  • What is geothermal energy and where is it used in the world?

    What is geothermal energy and where is it used in the world?

     · It is contained in the rocks and fluids beneath the earth's crust and can be found as far down to the earth's hot molten rock, magma. To produce power from geothermal energy, wells are dug a mile deep into underground reservoirs to access the steam and hot water there, which can then be used to drive turbines connected to electricity generators.

  • What is a Landscape?

    What is a Landscape?

    For example, from a wildlife perspective, we might define landscape as an area of land containing a mosaic of habitat patches, often within which a particular "focal" or "target" habitat patch is embedded (Dunning et al. 1992).

  • What did Jesus mean when he said,

    What did Jesus mean when he said, "Upon this rock I will ...

     · The name Peter (Gk., Petros) means "rock" or "rockman."In the next phrase Christ used petra (upon this rock), a feminine form for "rock," not a name. Christ used a play on words. He does not say "upon you, Peter" or "upon your successors," but "upon this rock"—upon this divine revelation and profession of faith in Christ.

  • Satan's Music

    Satan's Music

    Satan's Music. Psalms 50:22, "Now consider this, ye that forget God, lest I tear you in pieces, and there be none to deliver." "It is better to hear the rebuke of the wise, than for a man to hear the song of fools." —Ecclesiastes 7:5

  • There is or There are? 1 at

    There is or There are? 1 at

    An Quiz: There is/There are Practice simple present tense to be verbs with this nonjavascript quiz.

  • What is Groundwater

    What is Groundwater

    What is Groundwater? Groundwater is the water found underground in the cracks and spaces in soil, sand and rock. It is stored in and moves slowly through geologic formations of soil, sand and rocks called aquifers. Read More.

  • Interactives . The The Rock Cycle . How Rocks Change

    Interactives . The The Rock Cycle . How Rocks Change

    Rock formed in this way is called extrusive igneous rock. It is extruded, or pushed, out of the earth's interior and cools outside of or very near the earth's surface. What if the magma doesn't erupt out of a volcano, but instead gets pushed slowly upward toward the earth's surface over hundreds, thousands, or even millions of years?

  • The Sweet Science of Candymaking

    The Sweet Science of Candymaking

    Rock candy is made of large crystals of sugar, but other candies, such as fudge, contain smaller crystals of sugar. Question: As the sugar syrup cools down, what can we do to ensure that only small crystals form? Answer: Stir the syrup with a spoon or a spatula. Stirring prevents the sugar crystals that start to form from growing too big.

  • What is Weathering?

    What is Weathering?

    Frost action causes rocks to be broken apart into angular fragments. Idaho's extreme temperature range in the high country causes frost action to be a very important form of weathering. Exfoliation is a form of mechanical weathering in which curved plates of rock are stripped from rock below.