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165-Spodumene $10.00
Mystery includes rock, fossil, or mineral sample and Mystery questions with teaching instructions.

-- A sample of spodumene clearly showing pearly luster and crystal cleavage faces with measurable angles of 87 and/or 93

-- To provide the opportunity for a student to measure cleavage angles and begin to understand the pyroxene family of minerals
-- To introduce the concept of fractional crystallization, and differentiation of a molten magma into mineral components that crystallize in order of their properties
-- To provide the opportunity to work with elemental symbols and mineral formulas
-- To show that the lithium atom has properties that discourage it from being incorporated into solid feldspar mineral structures that are the first ones to solidify when a magma cools

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Ruth Deike
Rock Detective Geoscience Education
395 Deer Run Drive
Nellysford , VA 96080

Phone: 434-263-3737



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