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Searching Rudolf Steiner Lectures by GA number (GA0232)

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    Query was: silica

Here are the matching lines in their respective documents. Select one of the highlighted words in the matching lines below to jump to that point in the document.

  • Title: Mystery Centres: Lecture IV: The Ephesian Mysteries of Artemis
    Matching lines:
    • consist chiefly in quartz, i.e. in rocks containing silicates and
    • silicates, in mica and in feldspar.
  • Title: Mystery Centres: Lecture V
    Matching lines:
    • has placed them in the earth. The quartz, the silica and such like
    • in and then gradually hardening. Silica had a wax-like consistency at
    • that when such silicates in the wax-like condition began to condense
    • through the silica substance in the atmosphere having been already
    • substance in addition to the silica, and that is what you find today
    • came in the same way as the silica out of the cosmos on to the earth.
    • becomes denser and denser. In certain localities the silica
    • Those wax-like mobile silicate forms in which the outlined forms of
  • Title: Mystery Centres: Lecture VI
    Matching lines:
    • the chalk there was the silica, which now appears in quartz. In this
    • silica the plant-forms appeared, those cloud-like formations becoming
    • silica as the plant-beings becoming green and fading away, the

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