Graded assignment
laboratory: rocks and minerals
purpose: the purpose of this lab is to identily 4 unknown mineral samples by observing the color luster streak
and hardness
directions: use the pictures of each unknown mineral to fill out the table in part a then compare your table to
the data table in part b to identify the 4 unknown minerals last answer some analysis questions in part c
parta: observation
for each picture of a mineral write down your observations in the data table below use only the terms provided
in the example row to fill out the data table
unknown #1
racordo
vations about the color and lustrothe minerals. then
at the treak and observe whether or not the mineral scratched plass
the
unknown mineral al
scratch test
unknown #2
scratch test
unknown mineral 2
stresk test