GemGemsLet’sLookatLet’sLookatbyAinslieMitchellCover©Photolibrary.com;3–5©Photolibrary.com;6©GettyImages;7©Photolibrary.com;8©GettyImages;9–12©Photolibrary.com;13©GettyImages;14©AAP.Copyright©byHarcourt,Inc.Allrightsreserved.Nopartofthispublicationmaybereproducedortransmittedinanyformorbyanymeans,electronicormechanical,includingphotocopy,recording,oranyinformationstorageandretrievalsystem,withoutpermissioninwritingfromthepublisher.RequestsforpermissiontomakecopiesofanypartoftheworkshouldbeaddressedtoSchoolPermissionsandCopyrights,Harcourt,Inc.,6277SeaHarborDrive,Orlando,Florida32887-6777.Fax:407-345-2418.HARCOURTandtheHarcourtLogoaretrademarksofHarcourt,Inc.,registeredintheUnitedStatesofAmericaand/orotherjurisdictions.PrintedinMexicoISBN10:0-15-350447-1ISBN13:978-0-15-350447-1OrderingOptionsISBN10:0-15-350332-7(Grade2Below-LevelCollection)ISBN13:978-0-15-350332-0(Grade2Below-LevelCollection)ISBN10:0-15-357456-9(packageof5)ISBN13:978-0-15-357456-6(packageof5)Ifyouhavereceivedthesematerialsasexaminationcopiesfreeofcharge,HarcourtSchoolPublishersretainstitletothematerialsandtheymaynotberesold.Resaleofexaminationcopiesisstrictlyprohibitedandisillegal.Possessionofthispublicationinprintformatdoesnotentitleuserstoconvertthispublication,oranyportionofit,intoelectronicformat.12345678910050151413121110090807063Allrocksaremadeofminerals.Mineralscomefromtheearth.Ifyouhaveacollectionofrocks,youhaveacollectionofminerals.4Somerocksaremadeofonlyoneortwominerals.Theserocksarecalledgems.Mostgemsarefoundinsideotherrocks.5Longago,peoplemadespecialtoolstogetgemsoutofrocks.Gemsweresometimesusedasmoney.Theywerealsomadeintojewelryforimportantpeople.6Today,gemsarestillcollectedandmadeintojewelry.Theyarebeautiful.Somearerare,sotheyareexpensive.Mostgemsareveryhard.Theylastalongtime.7Manygemsarefoundundertheground.Theyhavetobeseparatedfromtheearthorrock.Theyoftenjustlooklikeplainoldstones.8Notallgemsarefoundundergroundinrocks.Sometimesgemsmaybeinthesandandgravelaroundrivers.Sand...
