<table width="95%" border="0" cellspacing="5" cellpadding="5" height="309" align="center"> <tr> <td valign="top"> <table width="100%" border="0" cellspacing="0" cellpadding="3"> <tr> <td colspan="5"> <div align="center"> <h1><font face="Arial, Helvetica, sans-serif" size="2">Crystalography Analysis and X-Ray Analysis </font></h1> </div> </td> </tr> <tr> <td width="13%"> <h2 align="center"><font face="Arial, Helvetica, sans-serif" size="2"><a href="http://www.capillary-tubes.co.uk/index.html">Capillary Tubes</a></font></h2> </td> <td width="25%"> <h2 align="center"><font face="Arial, Helvetica, sans-serif" size="2"><a href="http://www.capillary-tubes.co.uk/borosilicate_glass_capillary_tubes.htm">Borosilicate Glass Capillary Tubes</a></font></h2> </td> <td width="20%"> <h2 align="center"><font face="Arial, Helvetica, sans-serif" size="2"><a href="http://www.capillary-tubes.co.uk/crystalography_x-ray_analysis.htm">Crystalography X Ray Analysis</a></font></h2> </td> <td width="19%"> <h2 align="center"><font face="Arial, Helvetica, sans-serif" size="2"><a href="http://www.capillary-tubes.co.uk/glass_capillary_tubes.htm">Glass Capillary Tubes</a></font></h2> </td> <td width="23%"> <h2 align="center"><font face="Arial, Helvetica, sans-serif" size="2"><a href="http://www.capillary-tubes.co.uk/quartz_glass_capillary_tubes.htm">Quartz Glass Capillary Tubes</a></font></h2> </td> </tr> </table> <h1 align="center"> </h1> </td> </tr> <tr> <td valign="top"> <div align="center"> <h2><font face="Arial, Helvetica, sans-serif" size="2"><a href="glass_capillary_tubes.htm">Online Crystalography Analysis Crystallography Analysis and X-Ray Analysis Specialists in the UK Capillary Tubes Ltd The UKs Largest Supplier of Capillary Tubes</a><br> </font></h2> </div> </td> </tr> <tr> <td valign="top" height="453"><font face="Arial, Helvetica, sans-serif" size="2"><a href="crystalography_x-ray_analysis.htm">X-Ray Analysis</a><br> <a href="crystalography_x-ray_analysis.htm">Capillary Tube Supplies Ltd</a><br> <a href="crystalography_x-ray_analysis.htm">X-Ray Analysis UK </a><br> <a href="crystalography_x-ray_analysis.htm">UK X-Ray Analysis</a> <br> <a href="crystalography_x-ray_analysis.htm">Online X-Ray Analysis </a><br> <a href="crystalography_x-ray_analysis.htm">X-Ray Analysis Online</a> <br> <a href="crystalography_x-ray_analysis.htm">Crystalography Analysis</a><br> <a href="crystalography_x-ray_analysis.htm">UK Crystalography Analysis </a><br> <a href="crystalography_x-ray_analysis.htm">Online Crystalography Analysis </a><br> <a href="crystalography_x-ray_analysis.htm">Crystallography Analysis</a><br> <a href="crystalography_x-ray_analysis.htm">UK Crystallography Analysis </a><br> <a href="crystalography_x-ray_analysis.htm">Online Crystallography Analysis </a><br> <br> <a href="crystalography_x-ray_analysis.htm">Crystalography </a></font> <p>Crystalography is defined as the study of crystals and their structural properties </p> <p>Some Characteristics of crystals: </p> <p>Faces: Surfaces that bounded the crystal. The number of faces in a crystal is a diagnostic character. Faces are of two kinds; like and unlike. </p> <p>Forms: Faces which have common elements of symmetry are called form. A crystal made up of like faces is termed simple form. Combined form is characterized by tow or more simple forms. They can’t enclose space by themselves and called open forms. Simple forms can enclose space by themselves and considered as closed forms. </p> <p>Edge: An edge is formed by the intersection of any two adjacent faces. </p> <p>Solid angel: This the angel formed by the intersection of three or more faces. </p> <p>Interfacial angel: The angel between any two faces of a crystal. It is formed by the intersection of two normal lines taken along two adjacent faces. </p> <p>Law of constancy of interfacial angle The interfacial angles are constant for all crystals if a given mineral with identical composition at the same temperature. 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