Rocks And Minerals Notes Guide 2015 (Page 2 of 4) in pdf

Rocks And Minerals Notes Guide 2015 Page 2

D. T he m ineral’s _ ____________________________ i s i ts

resistance t o b eing s cratched. N umber _ ________ i s t he “ hardest”

mineral a nd n umber _ ______ i s t he “ softest” m ineral.

“A m ineral’s h ardness i s t ested u sing t he _ ______________ s cale.”

“How d o m inerals b reak?”

E. _ __________________________________is t he t endency o f

s ome m inerals t o b reak a long s mooth, f lat s urfaces.

F. _ ___________________________________ i s t he t endency o f

s ome m inerals t o b reak u nevenly a long c urved a nd i rregular

s hapes.

G. _ ____________________________ i s t he m easure o f h ow m uch

matter i s i n a g iven a mount o f s pace. M inerals c an e ither f loat o r

sink i n w ater d epending o n t heir d ensity.

SPECIAL P ROPERTIES O F M INERALS:

7. S pecial p roperties a re o nly p articular t o a _ ______________ t ypes o f m inerals. T hey i nclude:

a ) _ _____________________________ d ) _ __________________________________

b ) _ _____________________________ e ) _ __________________________________

c ) _ _____________________________ f ) _ __________________________________

8. _ __________________are r are m inerals t hat c an b e _ _____________ a nd _ ___________________.

9. _ ____________ c ontain a s ufficient a mount o f m inerals t hat c an b e e conomically e xtracted f rom t he r ock.

The o res a re e xtracted f rom t he e arth t hrough m ining f or p rofit.

Rocks And Minerals Notes Guide 2015 Page 2