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الصخور والمعادن

علوم

مصطلحالتعريف
المعدن مادة صلبة غير عضوية موجودة في الطبيعة
الصخر مادة مكونة من معدن واحد او اكثر
بلورات مادة صلبة ذراتها تترتب بشكل منتظم ومتكرر
الحجر الكريم معدن نادر قابل للقص والصقل مما يعطيه مظهر جميل
الصخور النارية صخور تكونت نتيجة تبريد الصخور المصهورة الموجودة في باطن. الارض
النسيج الصخري الشكل العام للصخر
دورة الصخر الية تحول الصخور من نوع الي اخر وعلاقة بعضها ببعض
الصخور المتورقة صخور لها بنية ورقية واضحة
Created by: Maha311
Popular Earth Science sets

 

 



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