Type:

Other

Description:

This lab gives students the opportunity to investigate crystallization processes and textures. Students experiment with a crystalline wax, studying how/where the crystals form, how to get crystal-free material, and how different cooling rates affect crystal size and distribution. Students can even create their own pillow lavas and flow/cooling textures. The experiments also provide an opportunity to clarify the idea of quenching for students. Once students understand quenching, they have an easier time completing the included exercise which involves looking a binary eutectic phase diagram and the modal abundances of glass and crystals in a real sample. The phase diagram and modal information are used to determine a melting/quenching history and composition for a historical sample of metallurgical slag.

Subjects:

    Education Levels:

    • Grade 1
    • Grade 2
    • Grade 3
    • Grade 4
    • Grade 5
    • Grade 6
    • Grade 7
    • Grade 8
    • Grade 9
    • Grade 10
    • Grade 11
    • Grade 12

    Keywords:

    Higher Education,NSDL_SetSpec_380601,Geology,oai:nsdl.org:2200/20100502200657487T,Undergraduate (Upper Division),Undergraduate (Lower Division),Igneous Processes,Vocational/Professional Development Education,Geoscience,NSDL

    Language:

    English

    Access Privileges:

    Public - Available to anyone

    License Deed:

    Creative Commons Attribution Non-Commercial Share Alike

    Collections:

    None
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    Non-profit Tax ID # 203478467