Quartz

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Quartz (Tibet)

Quartz is the second most common mineral in the earth's crust after the feldspars and appears in its most pure and beautiful form as rock crystal. Chemically, quartz consists of very pure silicon dioxide (SiO2) and crystallises in the hexagonal crystal family.

Fine- to medium-grained metamorphic rocks with a quartz content of 98% or more are called quartzite. They are very resistant to environmental influences.

In the human organism, quartz is particularly significant for the silicic acid process, through which the I-organisation can intervene in the nerve-sense system in a formative way. Quartz is therefore strongly connected to the human head, which is the sensory centre.

Literature

References to the work of Rudolf Steiner follow Rudolf Steiner's Collected Works (CW or GA), Rudolf Steiner Verlag, Dornach/Switzerland, unless otherwise stated.
Email: verlag@steinerverlag.com URL: www.steinerverlag.com.
Index to the Complete Works of Rudolf Steiner - Aelzina Books
A complete list by Volume Number and a full list of known English translations you may also find at Rudolf Steiner's Collected Works
Rudolf Steiner Archive - The largest online collection of Rudolf Steiner's books, lectures and articles in English.
Rudolf Steiner Audio - Recorded and Read by Dale Brunsvold
steinerbooks.org - Anthroposophic Press Inc. (USA)
Rudolf Steiner Handbook - Christian Karl's proven standard work for orientation in Rudolf Steiner's Collected Works for free download as PDF.