1. Yiziphi izinhlobo zezinto zamalensi ezikhona?Izinto zemvelo: itshe lekristalu, ubulukhuni obuphezulu, akulula ukusigaya, lingadlulisela imisebe ye-ultraviolet, futhi line-birefringence.Izinto zokwenziwa: kufaka phakathi ingilazi ye-inorganic, ingilazi ye-organic kanye ne-optical resin.Ingilazi ye-Inorganic: Incibilikiswa ku-silica, calciu...
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