6.5
Pyrites are usually found in solid form
The Mohs hardness of sodium chloride is 2,5.
the mineral that has a hardness of 7 is "Quarts
when ductility increase hardness decrease
A steel nail cannot scratch minerals that are harder than itself, which has a Mohs hardness of about 4.5. This means it cannot scratch minerals such as quartz (hardness 7), topaz (hardness 8), corundum (hardness 9), and diamond (hardness 10). These minerals possess greater hardness and will resist scratching by a steel nail.
Alfred W. G. Wilson has written: 'Pyrites in Canada' -- subject(s): Pyrites 'Currents and shore processes in Lake Ontario' 'Pyrites au Canada' -- subject(s): Pyrites 'Trent River system and Saint Lawrence outlet' -- subject(s): Geology
What is iron pyrites?
4.9-5.2
Teamo Supremo - 2002 Pyrites and Pirates was released on: USA: 19 April 2003
Iron pyrites is commonly called "fools gold" since it is often mistaken for gold by people who do not know how to tell the difference.
Iron pyrites, plumbago.
Also known as "Fool's Gold", it is yellow, shiny, and tends to have crystals with flat surfaces (REAL gold does not shine) The link below is to a photo of iron pyrites.
Iron Pyrites - Iron Sulfide
Pyrites are usually found in solid form
Pyrites
Copper pyrites, also known as chalcopyrite, is composed of copper, iron, and sulfur. Its chemical formula is CuFeS2.
The main chemical name for iron pyrite is iron disulfide (FeS2). It is commonly known as fool's gold due to its shiny metallic appearance.