https://padlet.com/3212862/izob7foxgzee By: David en-us 2018-03-21 14:45:13 UTC 2018-03-21 15:07:15 UTC hello@padlet.com 3212862 https://padlet.com/3212862/izob7foxgzee/wish/244556701 property -an attribute 

hardness - minerals resistance to being scratched ]]> 2018-03-21 14:47:31 UTC https://padlet.com/3212862/izob7foxgzee/wish/244556701 3212862 https://padlet.com/3212862/izob7foxgzee/wish/244558569 1 and 2 you can scratch it 

3 and 4 a penny can scratch it 
5 and 6 a piece of metal or glass can scratch it 
7 and 8 a pieces of steel has to scratch it  ]]> 2018-03-21 14:50:16 UTC https://padlet.com/3212862/izob7foxgzee/wish/244558569 3212862 https://padlet.com/3212862/izob7foxgzee/wish/244560619 streak -the color of the mineral when in powder form 

1-unlike like color streaks is not affective by surfise tarnish or impurities ]]> 2018-03-21 14:52:46 UTC https://padlet.com/3212862/izob7foxgzee/wish/244560619 3212862 https://padlet.com/3212862/izob7foxgzee/wish/244562473 cleavage -tendency to break along flat surfaces due to crystal shapes

fracture-tendansy of some minarals to break unevenly  ]]> 2018-03-21 14:55:40 UTC https://padlet.com/3212862/izob7foxgzee/wish/244562473 3212862 https://padlet.com/3212862/izob7foxgzee/wish/244566395 density can help tell a mineral can help us determine a mineral some rocks feel heavier even though its the same size ]]> 2018-03-21 15:02:14 UTC https://padlet.com/3212862/izob7foxgzee/wish/244566395 3212862 https://padlet.com/3212862/izob7foxgzee/wish/244568772 special properties help us determen what the minaral is 

salty taste 
sent
optical 
magnet 
radioactivity ]]> 2018-03-21 15:05:52 UTC https://padlet.com/3212862/izob7foxgzee/wish/244568772