CoachA twin is an intergrowth of two or more crystals of the same mineral whose lattices are related by a symmetry that the crystal itself does not have, such as a reflection across a plane (the twin plane). Polysynthetic twinning is repeated twinning on parallel planes, which divides a crystal into thin parallel lamellae whose orientations alternate.
বইগুলো এখনো বাংলা ভাষায় পাওয়া যায় না — ইংরেজি সংস্করণ দেখানো হচ্ছে।
Earth and Space Sciences · পরিভাষা
Twin, polysynthetic twinning কী?
অন্য নাম: twin (crystal) · polysynthetic twinning
