Mgbe ndị a ajụkwa ji nwayọọ nwayọọ na otu ịnweta nwere ike-amanye mgbe usu Ọdịdị cools na contracts, n'ụzọ nkịtị squeezing adịghị n'ime ohere iputa oghere ebe ha crystallize (eg, rutile agịga (silk) na corundum)
