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অধ্যায়-১০: খনিজ সম্পজ: ধাতু-অধাতু

পার্ট-১: খনিজ সম্পদ

পার্ট-২: ধাতু নিষ্কাশন

পার্ট-৩: নির্বাচিত সংকর ধাতু

পার্ট-৪: কতিপয় ধাতু এবং সংকর ধাতু ক্ষয় হওয়ার লক্ষণ, কারণ ও প্রতিকার

পার্ট-৫: খনিজ অধাতু

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