Searching Rudolf Steiner Lectures by GA number (GA0232)
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- Title: Mystery Centres: Lecture IV: The Ephesian Mysteries of Artemis
- consist chiefly in quartz, i.e. in rocks containing silicates and
- silicates, in mica and in feldspar.
- Title: Mystery Centres: Lecture V
- 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
- 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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