Inhaltsangabe
Excerpt from Second Appendix to the Sixth Edition of Dana's System of Mineralogy
During the ten years of mineralogical investigation which this appendix covers, a large amount of material has been published. An evidence of this is to be found in the two hundred new names which are given in the classified list in the Introduction. About sixty of these new names on account of the completeness of their descriptions seem to have a warrant for their acceptance as new Species. The other names are either of imperfectly described minerals or variety names of well-recognized species.
The descriptions of the new species included in this book are given concisely but completely. It was found, however, impracticable to follow the plan adopted in the System and the First Appendix of recalculating all the angles and crystal constants of the new species. This has been done in a few cases, but in the majority of the descriptions the figures of the authors have been accepted without verification. In the cases of some of the new species with complex crystals it has been impossible to give the complete lists of the forms identified upon them. The method followed has been to give the more common and prominent forms and to indicate the number of those not listed.
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Second Appendix to the Sixth Edition of Dana's System of Mineralogy
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Paperback. Zustand: New. Print on Demand. This book, a compendium of mineralogical history, documents new mineral discoveries, technical advancements and the evolution of scientific understanding in the 1899-1909 period. 1899 was a key year for crystallographic study, as evidenced by the many new names introduced in the First Appendix, including arsensulfurite, arsensulphuret, mosesite, and souesite. This book advances that knowledge, introducing 64 additional species, including the new classification of hitherto unnamed substances described in the Second Appendix, such as ardennite, arzrunite, and artinite. The author's observations on the nature and properties of these new discoveries provide key insights into the diversity and complexity of minerals. In doing so, this book expands our knowledge of the mineral kingdom in unprecedented ways. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Bestandsnummer des Verkäufers 9781333495831_0
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