| | Book (volume) | book by K. V. Zinserling, Artificial Twinning of Quartz, published by the Academy of Sciences of the USSR...Historically, interest in the descriptive morphology of quartz, although long continued, was predominant in the...structural and crystallochemical properties of quartz and of the other polymorphs of silica are now the...the selection of colorless, limpid crystals of quartz and of other minerals as standards for the measurement...variations apparently always present in natural quartz. After a century of extremely precise and laborious |
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