Final answer:
After summing the percentages of silver and diamond in the ore and subtracting from 100%, the percentage of other matter is 99.939%, rounded to the nearest thousandth.
Step-by-step explanation:
To calculate the percentage of matter in the ore that is neither silver nor diamond, we start by adding the percentages of silver and diamond together:
0.0027% (silver) + 0.058% (diamond) = 0.0607%
Then, we subtract this total from 100% to find the percentage of other matter in the ore:
100% - 0.0607% = 99.9393%
Rounded to the nearest thousandth, the percentage of matter in the ore that is neither silver nor diamond is 99.939%.
Diamond is a solid form of the element carbon with its atoms arranged in a crystal structure called diamond cubic. Another solid form of carbon known as graphite is the chemically stable form of carbon at room temperature and pressure, but diamond is metastable and converts to it at a negligible rate under those conditions.
Diamond has the highest hardness and thermal conductivity of any natural material, properties that are used in major industrial applications such as cutting and polishing tools. They are also the reason that diamond anvil cells can subject materials to pressures found deep in the Earth.