oxygen
Magnesium is needed for chlorophyll
Well, honey, a non-example of hardness would be something soft like a marshmallow or a pillow. Basically, if you can squish it with your little pinky finger, it ain't hard, darling. So, next time you're trying to figure out what's hard and what's not, just remember, if it feels like a cloud, it's definitely not hard.
Diamond is an example of a valuable non-metallic mineral. It is highly valued for its beauty and used in jewelry as well as in industrial applications due to its hardness and unique properties.
Non-examples of hardness include materials that easily deform or break under pressure, such as chalk, rubber, and soft clay. These substances lack the resistance to scratching or indentation that characterizes hard materials. Additionally, liquids like water or oils do not possess hardness, as they do not maintain a fixed shape and yield easily to external forces.
This is an example of hardness, which is a physical characteristic that describes the resistance of a mineral to being scratched. Hardness is determined by the ability of one mineral to scratch another.
Talc Diamond Quartz
Diamonds are listed on the Mohs Scale of hardness, and occupy the hardest rating at 10.
It is a gas so it doesn't have a hardness unless in solid state
Diamond
Anything higher on the hardness scale for example if limestone has a hardness of 4 then it would take something with a hardness of 4 or higher to scratch it.
We use Mohs scale of mineral hardness to access the hardness of minerals, which calcite is one example.
The range of Chart is as non metallic
For example talc is very soft.