Monday, April 14, 2008

Hardness and Specific Gravity Testing on Unknown Mineral Samples

Students continued our mineral testing activity today in class. Students finished testing the streak, luster, cleavage/fracture of their mineral samples and then began testing the hardness (using fingernails, pennies and steel nails) and specific gravity (density) of the samples. Data was recorded.

Tonight's Homework:
Read pages 8 - 11 in your book and answer the questions on page 11.

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