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If a mineral can scratch a penny what number is it on Mohs Scale?
Wiki User
∙ 6y ago
Most of the time, no. But there are some minerals, such as kyanite, that have more than one hardness in an individual crystal. But this is an exception to the Mohs scale of mineral hardness, which is based on the premise that a mineral of a lower number cannot scratch a mineral of a higher (harder) number.
Wiki User
∙ 15y ago
Wiki User
∙ 14y agoIn general, a mineral of one hardness cannot scratch a harder mineral, although repeatedly attempting to create a scratch may have limited success if the difference in hardness is verysmall.
Wiki User
∙ 12y agoNo, it won't. A harder mineral will always scratch a softer one, but not vice versa because the softer one's composition and structure are not harder than the other's. Would talc scratch diamond? Never. Not even if you worked at it for a million years...
If you do scratch your two minerals together and the harder one appears to have a white streak, this is because the softer one has rubbed off on the harder one. The streak may be hard to remove because of the irregular surface of the harder mineral.
Wiki User
∙ 13y agoNo, that is the basis of Mohs hardness scale.
Wiki User
∙ 15y agoNo. Only itself or a lower number.
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What is the hardness of a mineral if it scratches a penny but will not scratch glass?
Between 3.5 and 5.5 on the Mohs scale of mineral hardness.
Which mineral would a penny scratch?
calcite
What mineral can be scratched by a steel knife but not a copper penny?
You can scratch any mineral against a mineral with a higher place. Talc maybe?
How is the hardness range for a mineral determined?
The answer is quite complicated in fact I don't know the exact answer. What I really know is that a geologist will probably know the exact answer. Geologists study rocks and rocks have lots of minerals. You can search the answer as well by looking at geologist websites. If it doesn't work then I hope someone else can edit this answer.
What property are you testing if you scratch a mineral with a penny a nail and your fingernail?
It relative hardness, compared to others. It is relative because it does not give absolute values.
What is the hardness of a mineral if it scratches a penny but will not scratch glass?
Between 3.5 and 5.5 on the Mohs scale of mineral hardness.
What is the harness of a mineral if it scratches a penny but will not scratch glass?
Google "Mohs hardness scale". This is a relative hardness scale which compares one mineral's hardness to another. (It is between 3.5 and 5.5 on the Mohs hardness scale)
Which mineral would a penny scratch?
calcite
What is the only thing that can scratch a diamond?
The only thing or mineral that will scratch diamond is another diamond. Scientists use a penny nail and fingernail to see what number it is. On a scale measured from 1-10 diamond is 10 ranked as hardest mineral, so nothing scratches diamond except diamond.
What mineral can be scratched by a steel knife but not a copper penny?
You can scratch any mineral against a mineral with a higher place. Talc maybe?
How is the hardness range for a mineral determined?
The answer is quite complicated in fact I don't know the exact answer. What I really know is that a geologist will probably know the exact answer. Geologists study rocks and rocks have lots of minerals. You can search the answer as well by looking at geologist websites. If it doesn't work then I hope someone else can edit this answer.
What property are you testing if you scratch a mineral with a penny a nail and your fingernail?
It relative hardness, compared to others. It is relative because it does not give absolute values.
What is the pin code in YoVille game cards?
The pin code is the number you have to scratch off with a penny or something. You can find that pin code at the back of the game card where it says "scratch gently with a penny" then you'll find the code once you scratch it off.
What are you referring when you address the hardness of a mineral?
A minerals hardness is basically its tendency to scratch or be scratched by another mineral or object. For example if a mineral is very soft (Like Talc or Gypsum) then you can scratch it with your finger but if you have a very hard mineral such as diamond you will not be able to scratch it with anything other than another diamond. The hardness values are quantified in Mohs hardness scale using the numbers 1-10 with 1 being the softest (Talc) and 10 being the hardest (Diamond). Ordinary objects with a known hardness can be used to determine a minerals relative hardness by simply seeing if the object will scratch the mineral or not. Pencil lead=1.5, Fingernail =2.2-2.5, Penny=3.2-3.5, Pocketknife=5.1, Glass plate=5.5, Steel file=6.5, Streak plate=7.0
Will fluorite scratch a penny?
no because fluorite is softer than a penny
What mineral do you scratch with a penny or steel wool for hardness?
Copper and steel have hardness of around 3 and 6 respectively on the Mohs scale. You can use them to test any mineral, and roughly estimate its hardness. If it's scratched by copper, it's less than 3, if it's scratched by steel but not by copper, it's between 3 and 6, if neither copper nor steel scratches it, then it's above 6.
What minerals can scratch a penny?
calcite
