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অধাতু কার্বনের একটি রূপভেদ হলো হীরে। হীরে আলোর আভ্যন্তরীণ পূর্ণ প্রতিফলনে সক্ষম।
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অধাতু কার্বনের একটি রূপভেদ হলো হীরে। হীরে আলোর আভ্যন্তরীণ পূর্ণ প্রতিফলনে সক্ষম।