Cristalografia módulo 6 maclas. 2013 ppt
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Transcript of Cristalografia módulo 6 maclas. 2013 ppt
“Fairy Cross” Twins
• The staurolite crystal shown has twinning on {031}
• The small crystals on the surface are garnets
Deformation Twins
• During deformation atoms can be pushed out of place
• If this happens to produce a symmetrical arrangement, it produces deformation twins