COLORS
what color is fluorite?
green,blue,purple,red,yellow,black,pink,white,orange,
brown.
Why do you need to identify a streak color?
(student answer)
Can luster change the color of a rock?
no
how can you find the hardness of a mineral?
scratching the rock or weigh it
how can you identify cleavage?
finding smooth surfaces
what color is diamand?
gold, or silver
how do you test the streak color ?
scraping the minerals on the streak plate
How to identify luster?
By Shining Light at it?
why do you need to find the hardness of a rock?
(student answer)
what is cleavage?
Cleavage is when it has smooth or flat surfaces
what color is quartz?
white
why does the streak color happen?
It happens when a mineral is rubbed against a rough plate.
What is luster?
How shiny the light reflects on the rock
How hard can a rock be?
1.0/10 is the highest
True or false?
When you split a rock open does it give a rock cleavage?
True
what color is topaz?
blue,yellow,orange,pink,purple,green,colorless.
What color is streak talc?
White or pale green
true or false?
Does luster reflect light?
true
How does hardness affect a rock?
by crushing the rock which might give it a different shape
What rocks have cleavage?
Slate Phyllite Schist and etc.
what color is apatite?
green,yellow,purple,pink,brown,colorless.
when was the first streak color made?
they were made in 1865
What is the difference between metallic luster and nonmetallic luster?
metallic luster is shiny and non-metallic luster isn't
who made the hardness scale
Friedrich moh
Does cleavage affect rocks?
No, cleavage is just smooth texture on the rock.