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9 Travertine is like the salts also an evaporation rock/mineral type. It can evaporate or precipitate from calcite rich waters. Travertine is banded rock composed of CaCO,,3,, Travertine can often be found close to limestone and rivers or in caves where it forms stalactites and stalagmites.
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13 = Characteristics =
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15 Travertine often has a fibrous or concentric appearance and exists in white, tan, cream-colored, and even rusty varieties. Its hardness is medium hard, a 4-5 on Mohr's scale. It can be recognized by the fact that it reacts on hydrochloric acid.
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17 = References =
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19 * [[https:~~/~~/www.britannica.com/>>url:https://www.britannica.com/||style="background-color: rgb(255, 255, 255); font-size: 14px;"]]
20 * onewitz, Ronald Louis (2012). Rocks and Minerals. DK Publishing. p. 110. ISBN 978-0-7566-9042-7.
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27 = Travertine =
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29 [[image:Travertine.jpg||alt="image.jpg"]]
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32 |=Type|Salt stone
33 |=Chemical formula|CaCO,,3 ,,
34 |=Color|white or cream
35 |=Streak|White
36 |=Luster|Fibrous or concentric
37 |=Hardness|Medium hard
38 |=Cleavage|Non existent
39 |=Image|[[Travertine>>url:https://www.google.com/url?sa=i&url=https%3A%2F%2Fwww.britannica.com%2Fscience%2Ftravertine&psig=AOvVaw0yOQXiVO4Bpz0yKAu3aJqd&ust=1611059011247000&source=images&cd=vfe&ved=0CAIQjRxqFwoTCNiBqtO8pe4CFQAAAAAdAAAAABAD]]
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44 **Contents**
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46 {{toc/}}
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TerraIndex