• How hard is it to break a piece of limestone? Yahoo Answers

    How hard is it to break a piece of limestone? Yahoo Answers

    Apr 19, 2006 · Limestone is not hard at all compared to other minerals. It''s not only soft but it''s very easily disolved in water. Most large cave systems around the earth were once limestone deposits that got washed away. The stalagtites and stalagmites that are found in caves are limestone deposits.

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  • Mohs Scale of Hardness amfed.org

    Mohs Scale of Hardness amfed.org

    Mohs Scale of Mineral Hardness. In 1812 the Mohs scale of mineral hardness was devised by the German mineralogist Frederich Mohs (17731839), who selected the ten minerals because they were common or readily available. The scale is not a linear scale, but somewhat arbitrary.

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  • Difference Between Gypsum and Limestone Compare the

    Difference Between Gypsum and Limestone Compare the

    Nov 04, 2011 · The key difference between gypsum and limestone is that the calcium sulfate is the main constituent in gypsum whereas calcium carbonate is the main constituent of limestone.. Limestone and gypsum are minerals that form from calcium salts limestone contains calcium carbonate while gypsum contains CaSO 4 ܨH 2 O. However, their properties and usages are different from each other.

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  • Limestone Excavation Excavation & Site Work Contractor

    Limestone Excavation Excavation & Site Work Contractor

    Oct 19, 2007 · I''m new to this site and hope to gain some insight in pricing limestone rock excavation. I''m an excavating contractor who runs several JD 9520''s with pull pans and have always avoided projects with a lot of rock excavation mainly because the tractor and pan setups don''t do rock.

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  • How hard is it to care for Limestone? Houzz

    How hard is it to care for Limestone? Houzz

    I have used limestone in baths for many projects and I have limestone in my own master bath (counter, floor tile, and shower floor tile). The counter is holding up fine, though I never let anything stain it. The floor tile is also holding up fine we do not use any strong cleaners.

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  • Calcium carbonate Wikipedia

    Calcium carbonate Wikipedia

    Calcium carbonate is a chemical compound with the formula Ca CO 3.It is a common substance found in rocks as the minerals calcite and aragonite (most notably as limestone, which is a type of sedimentary rock consisting mainly of calcite) and is the main component of pearls and the shells of marine organisms, snails, and eggs.Calcium carbonate is the active ingredient in agricultural lime and

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  • How does weathering affect limestone? Internet Geography

    How does weathering affect limestone? Internet Geography

    Weathering is the breakdown of rock by physical, chemical or biological processes. Limestone areas are predominantly affected by chemical weathering when rainwater, which contains a weak carbonic acid, reacts with limestone. This causes the limestone to dissolve. Carbon dioxide from the respiration of animals (and ourselves) is one cause of increased carbon dioxide in the atmosphere.

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  • Mohs Scale of Relative Mineral Hardness Specialty Kitchens

    Mohs Scale of Relative Mineral Hardness Specialty Kitchens

    Mohs Scale of Relative Mineral Hardness. A German mineralogist by the name of Friedrich Mohs invented a scale of relative mineral hardness that has become known as the Mohs scale. This scale has been a valuable tool in identifying minerals since 1812. The following are the ten standard minerals in the Mohs scale: Talc (Absolute Hardness 1)

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  • limestone Kids Britannica Kids Homework Help

    limestone Kids Britannica Kids Homework Help

    Limestone is a type of rock that is made up of bits of animal shells. Over millions of years these shells collected on the ocean floor. As layers of shells and mud built up, the lower layers slowly hardened into limestone.

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  • Tunnel Boring below Montreal: A Case  The Robbins Company

    Tunnel Boring below Montreal: A Case The Robbins Company

    Tunnel Boring below Montreal: A Case Study of Urban Tunneling through Hard Limestone. Posted by The Robbins Company Oct 17, 2016 White Papers Montreal, Quebec, Canada''s Rosemont Reservoir tunnel travels for 4.0 km below city streets, faulted rock, a disused quarry, and active subway. The story of the 3.0 m diameter Double Shield TBM''s

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  • Difference Between Granite & Limestone Sciencing

    Difference Between Granite & Limestone Sciencing

    Apr 25, 2017 · AppearanceGranite has a grainy appearance and can be pink or varying shades of gray, depending upon its chemical and mineral makeup. The rock is usually found in large deposits for example, those that form large massifs or tors. Limestone is mainly white, although it may be tinted by impurities. The presence of iron oxide, for example, gives it a brownish or yellowish tint, and carbon

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  • how hard is limestone rock « BINQ Mining

    how hard is limestone rock « BINQ Mining

    Jun 30, 2013 · Limestone – Wikipedia, the free encyclopedia. Limestone is a sedimentary rock composed largely of the minerals calcite and . is hard, durable, and commonly occurs in easily accessible surface exposures. »More detailed

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  • How to Identify Sandstone Vs. Limestone Hunker

    How to Identify Sandstone Vs. Limestone Hunker

    Limestone is used in the construction industry because of its abundance and hard physical nature. Sandstone is created from particles of other rocks and sand. It is not as dense as limestone and is used as raw material for many industries. Telling the difference between these two types of rock can be accomplished just by looking at their

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  • Limestone secrets revealed — Science Learning Hub

    Limestone secrets revealed — Science Learning Hub

    Limestone diagenesis. Professor Cam Nelson. Diagenesis is the hardening of loose sediment into sedimentary rock, so in the case of carbonate sediments – skeletons that make up carbonate sediments – they go from being loose into a hard rock which is a limestone.

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  • Is limestone hard rock or soft rock? Answers

    Is limestone hard rock or soft rock? Answers

    Mar 17, 2016 · Compared to a Marshmallow, limestone is very hard. It''s even harder when comparing it with candy floss. In comparison to granite, steel or diamonds, limestone is a pretty soft rock.

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  • Limestone: The Calcium Carbonate Chemical Sedimentary Rock

    Limestone: The Calcium Carbonate Chemical Sedimentary Rock

    Limestone, as used by the minerals industry, is any rock composed mostly of calcium carbonate (CaCO 3). Although limestone is common in many parts of the United States, it is critically absent from some. Limestone is used to produce Portland cement, as aggregate in concrete and asphalt, and in an

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  • How to Lay a Crushed Limestone Driveway Home Guides SF

    How to Lay a Crushed Limestone Driveway Home Guides SF

    Easy access to your home always improves its value. The grayishwhite color of crushed limestone allows it to enhance any landscape. A limestone driveway may be a more affordable option

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  • Mohs Scale of Relative Mineral Hardness Specialty Kitchens

    Mohs Scale of Relative Mineral Hardness Specialty Kitchens

    Mohs Scale of Relative Mineral Hardness. A German mineralogist by the name of Friedrich Mohs invented a scale of relative mineral hardness that has become known as the Mohs scale. This scale has been a valuable tool in identifying minerals since 1812. The following are the ten standard minerals in the Mohs scale: Talc (Absolute Hardness 1)

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  • how hard is limestone? Yahoo Answers

    how hard is limestone? Yahoo Answers

    Jul 30, 2009 · Limestone is dominantly calcite or dolomite both carbonates. Both soft. On Moh''s scale of hardness, calcite defines a hardness of 3 dolomite is up to 4. Either mineral can be scratched with a knife. Sandstone is a bit more variable. Sand is dominated by quartz (silica) in most cases there are lots of details but let''s ignore them.

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  • Limestone secrets revealed — Science Learning Hub

    Limestone secrets revealed — Science Learning Hub

    Limestone diagenesis. Professor Cam Nelson. Diagenesis is the hardening of loose sediment into sedimentary rock, so in the case of carbonate sediments – skeletons that make up carbonate sediments – they go from being loose into a hard rock which is a limestone.

    Get Price
  • Mohs Scale of Hardness amfed.org

    Mohs Scale of Hardness amfed.org

    Mohs Scale of Mineral Hardness. In 1812 the Mohs scale of mineral hardness was devised by the German mineralogist Frederich Mohs (17731839), who selected the ten minerals because they were common or readily available. The scale is not a linear scale, but somewhat arbitrary.

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  • What is the mohs hardness of limestone Answers

    What is the mohs hardness of limestone Answers

    Mar 30, 2009 · Limestone is composed mainly of the mineral calcite. Calcite has a Mohs hardness of ''3'', it''s lustre is vitreous, and it has a white streak. how hard is diatomite on mohs scale

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  • limestone Kids Britannica Kids Homework Help

    limestone Kids Britannica Kids Homework Help

    Limestone is a type of rock that is made up of bits of animal shells. Over millions of years these shells collected on the ocean floor. As layers of shells and mud built up, the lower layers slowly hardened into limestone.

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  • What is Limestone? (with pictures)

    What is Limestone? (with pictures)

    Jan 24, 2020 · As an example of the diversity of limestone, both chalk and marble are forms of limestone, even though these two rock varieties look and feel very different. In the case of chalk, the rock is soft, typically white, and crumbly, while marble is hard, with crystalline grains and an array of colors which commonly includes large seams of color.

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  • Stone Sculptures, carving marble, limestone, soapstone

    Stone Sculptures, carving marble, limestone, soapstone

    If you do this, keep that wheel separate from your final buffing wheel. After the sanding make sure the stone is thoroughly dry. Some stones dry quickly and some like limestone can take a day or two. You can then apply a wax, also available through suppliers or use a floor wax made from carnauba wax. This is a hard wax and seems to do well.

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  • Limestone Maine Custom Countertops

    Limestone Maine Custom Countertops

    limestones MSU Department of Geography

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  • Care Instructions for Limestone Kitchen Countertops Home

    Care Instructions for Limestone Kitchen Countertops Home

    A. in English and a M. Ed. in secondary eduion from Ohio State. Photo CreditsBrand X Pictures/Brand X Pictures/Getty Imagesbibliographyiconicon for annotation toolCite this ArticleChoose

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  • Cleaning Tips for 6 Types of Stone Countertops

    Cleaning Tips for 6 Types of Stone Countertops

    Stone countertops not only add an expensive touch to kitchens, baths, and multipurpose rooms, they are an excellent choice for durability.Whether you choose concrete, granite, limestone, marble, quartz, or soapstone, it is important to learn how to care for each type of stone properly to prevent damage.

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  • Granite vs Limestone Compare Nature

    Granite vs Limestone Compare Nature

    Granite vs Limestone Characteristics. Though some rocks look identical, they have certain characteristics which distinguish them from others. Characteristics of rocks include texture, appearance, color, fracture, streak, hardness etc. Granite vs Limestone characteristics assist us to

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  • Limestone Sedimentary rocks

    Limestone Sedimentary rocks

    Travertine is a hard variety of chemical limestone. Travertine is the material speleothems (stalactites, stalagmites, and other dripstones) of karst caves are made of. Travertine formed in these caves is simply the result of a complete evaporation of water containing mainly calcium carbonate.

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  • How to Carve Stone (with Pictures) wikiHow

    How to Carve Stone (with Pictures) wikiHow

    Jun 15, 2019 · How to Carve Stone. Carving stone is a type of sculpting. Stone is different from other mediums in that it''s difficult to shape perfectly because of its density and unpredictability. Carving stone requires patience and planning. Use these

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  • Limestone Minerals Eduion Coalition

    Limestone Minerals Eduion Coalition

    Limestone. Limestone is a sedimentary rock composed mostly of the mineral calcite and comprising about 15% of the Earth''s sedimentary crust. It is a basic building block of the construction industry (dimension stone) and a chief material from which aggregate, cement, lime and building stone are made. 71% of all crushed stone produced in the U.S. is either limestone or dolomite.

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  • Is limestone a hard rock? Quora

    Is limestone a hard rock? Quora

    Limestone is a soft, easily workable rock that is comprised of at least 50% calcite, aragonite, and/or dolomite. Rocks don''t technically have any concrete MOHS hardness as they are mixtures of minerals. Minerals do have defined hardnesses though.

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  • What is limestone? How is it formed? Quora

    What is limestone? How is it formed? Quora

    Sep 05, 2016 · Limestone is a naturally occurring sedimentary rock. It consists of calcium carbonate (CaCO3) in its very pure form. Limestone is made by the accumulation of fossils of various marine organisms such as corals, algae, and mollusks and also by depos

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  • 3 Types of Rock for Climbing: Granite, Sandstone & Limestone

    3 Types of Rock for Climbing: Granite, Sandstone & Limestone

    Limestone is composed of aragonite and calcite, forms of calcium carbonate, silica, as well as very fine waterborne sediment like clay, silt, and sand. Limestone is usually very well cemented, forming a hard durable surface for climbing, and is generally erosion resistant so it forms long cliff bands.

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  • how hard is limestone? Yahoo Answers

    how hard is limestone? Yahoo Answers

    Jul 30, 2009 · Limestone is dominantly calcite or dolomite both carbonates. Both soft. On Moh''s scale of hardness, calcite defines a hardness of 3 dolomite is up to 4. Either mineral can be scratched with a knife. Sandstone is a bit more variable. Sand is dominated by quartz (silica) in most cases there are lots of details but let''s ignore them.

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  • Calcium carbonate Wikipedia

    Calcium carbonate Wikipedia

    Calcium carbonate is a chemical compound with the formula Ca CO 3.It is a common substance found in rocks as the minerals calcite and aragonite (most notably as limestone, which is a type of sedimentary rock consisting mainly of calcite) and is the main component of pearls and the shells of marine organisms, snails, and eggs.Calcium carbonate is the active ingredient in agricultural lime and

    Get Price
  • Mohs Scale of Relative Mineral Hardness Specialty Kitchens

    Mohs Scale of Relative Mineral Hardness Specialty Kitchens

    Mohs Scale of Relative Mineral Hardness. A German mineralogist by the name of Friedrich Mohs invented a scale of relative mineral hardness that has become known as the Mohs scale. This scale has been a valuable tool in identifying minerals since 1812. The following are the ten standard minerals in the Mohs scale: Talc (Absolute Hardness 1)

    Get Price
  • Limestone Facts for Kids

    Limestone Facts for Kids

    Limestone is hard enough to resist weathering but usually soft enough to be worked (cut and carved) by stonemasons. It is used for building material. Limestone, particularly Portland limestone, became popular in the 19th and 20th centuries for building things such as churches, banks and houses. However, acid rain does slowly erode limestone.

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  • Difference Between Granite & Limestone Sciencing

    Difference Between Granite & Limestone Sciencing

    Apr 25, 2017 · Difference Between Granite & Limestone Limestone is also used to build roads, in the manufacturing of cement and to extract iron from its ore. Granite has also served an important role in the construction sector, again due to its durability. Notable examples of its use over the centuries include several of the pyramids in Egypt.

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  • how hard is limestone? Yahoo Answers

    how hard is limestone? Yahoo Answers

    Jul 30, 2009 · Limestone is dominantly calcite or dolomite both carbonates. Both soft. On Moh''s scale of hardness, calcite defines a hardness of 3 dolomite is up to 4. Either mineral can be scratched with a knife. Sandstone is a bit more variable. Sand is dominated by quartz (silica) in most cases there are lots of details but let''s ignore them.

    Get Price
  • How to Identify Sandstone Vs. Limestone Hunker

    How to Identify Sandstone Vs. Limestone Hunker

    Limestone is used in the construction industry because of its abundance and hard physical nature. Sandstone is created from particles of other rocks and sand. It is not as dense as limestone and is used as raw material for many industries. Telling the difference between these two types of rock can be accomplished just by looking at their

    Get Price
  • The Strength of Marble and Granite Seattle Granite Marble

    The Strength of Marble and Granite Seattle Granite Marble

    Marble is limestone that has been compacted and heated over millions of years. As a result, marble is less porous and slightly stronger than limestone, but still less durable than granite. Depending on the limestone and the mineral combination within the marble, most marble rates from three to five on the Mohs hardness scale.

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  • How to Build a Limestone Wall DoItYourself.com

    How to Build a Limestone Wall DoItYourself.com

    Building a limestone wall is a nice way to create a new sighting line in your garden. At the same time, it is a practical gardening appliion when creating large flowerbeds. Words of Advice: Keep in mind that there are many different types of soils and sands in the various climatic zones on the Earth.

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  • limestone Characteristics, Uses, & Facts Britannica

    limestone Characteristics, Uses, & Facts Britannica

    Limestone has two origins: (1) biogenic precipitation from seawater, the primary agents being limesecreting organisms and foraminifera and (2) mechanical transport and deposition of preexisting limestones, forming clastic deposits. Travertine, tufa, caliche, chalk, sparite, and micrite are all varieties of limestone.

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  • How to Carve Limestone Sciencing

    How to Carve Limestone Sciencing

    Apr 24, 2017 · How to Carve Limestone SciencingHow to Carve Limestone•••the limestone rock image by Maria Brzostowska from Fotolia. comShareTweetEmailPrintRelatedHow to

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  • excavating limestone/bedrock Hornfans

    excavating limestone/bedrock Hornfans

    Oct 22, 2017 · The jackhammer is slow, gets jammed and is pretty hard physically and is probably about $1500 for a 70lb electric jackhammer. I''m still going to have to wheelbarrow all the debris to the front of the house. Anyway for those who have done this a lot in limestone, what are your suggestions for doing it by hand in a residential area.

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  • How to Install Limestone Floor Tiles DoItYourself.com

    How to Install Limestone Floor Tiles DoItYourself.com

    Installing limestone floor tiles can be a great way to provide a durable and elegant floor for your home. The process of installing limestone tiles will require some basic knowledge and a lot of hard work.

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  • How Hard is Your Stone? What You Need  Aria Stone Gallery

    How Hard is Your Stone? What You Need Aria Stone Gallery

    How Hard is Your Stone? What You Need to Know About the Mohs Hardness Scale 07.25.17

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  • Limestone Mining Michigan State University

    Limestone Mining Michigan State University

    5 million net tons per yearThe next series of images depict various means by which limestoneis quarried or processed, beginning with the oldest technologies and continuingup to the present. Below is an image of an old lime kiln, in which raw limestone (CaCO3) isconverted to CaO, or lime. Lime has many more uses, especially in the chemicalindustry, than does limestone. Lime is a mineral madeby

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