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251-Kaolin, clay for porcelain Gr 5-8 $6.00

Mystery includes rock, fossil, or mineral sample and Mystery questions with teaching instructions.


MYSTERY SAMPLE:
-- Powdered Kaolin clay
Note: Kaolinite is the name associated with the pure crystalline form of the mineral. Kaolin is the name for the industrial clay, which is mostly composed of Kaolinite, but also has other minerals in it.

TEACHING OBJECTIVES:
-- To practice world geography
-- To introduce the idea that physical properties affect what a mineral can be used for economically.
-- To introduce grain size.
-- Introduction of kaolinís molecular structure (the arrangement of atoms in a mineral), and how it changes when heated.
-- To introduce the idea that minerals change when exposed to rainy weather, a process called mineral alteration.
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Ruth Deike
Rock Detective Geoscience Education
395 Deer Run Drive
Nellysford , VA 96080

Phone: 434-263-3737

EMAIL:

 

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