Halite has perfect cleavage in three directions and is in the cubic crystal system.
It is the streak property. The streak is the color of a mineral in powdered form.
Iron?
its silicate
This is a chemical element as gold or platinum.
It depends on how soft the mineral is. For example, Talc is the softest mineral. You can scratch it with just a fingernail. but on the other hand, Diamond, the hardest mineral can only be scratched with another Diamond. So as long as you are not trying to scratch a diamond (it would be 50/ 50 change of scratching if use another diamond), use a diamond. NOTE: how easy it is to scratch a mineral has nothing to do with how easy it is to break a mineral. Example diamond is the hardest mineral but can be chipped or broken by a good strong hammer stroke.
They are broken into a new mineral
The past perfect tense is had broken.
Broken is a past participle, which doesn't show any tense without auxiliary verbs. Examples: Had broken - past perfect tense Has/Have broken - present perfect tense Will have broken - future perfect tense
No it should really be "will have broken"
a dusty white
A streak test.
A streak test.
When it is broken down into an individual mineral grain or crystal, in which case it is a mineral.
broken
Have/Has broken.
We will have broken.
I had broken.