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Crystals are like people: it is the defects in them which tend to make them interesting! -C.J. Humphreys https://t.co/EMVPWRtbgC https://t.co/EzQeTCApGX
Crystals are like people: it is the defects in them which tend to make them interesting! -C.J. Humphreys https://t.co/EMVPWRtbgC https://t.co/EzQeTCApGX