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A regional metamorphic belt is divided into zones based upon?
mineral groups found in the rocks.
How hard is a moissanite on the mohs scale of mineral hardness?
10 is the hardest mineral on the scale. Since Mohs understood this to be the diamond (based on tests scratching different minerals) the diamond was designated a 10.
What test is used to assess a mineral based on its reaction with a substance that may or may not produce carbon dioxide bubbles?
Carbon dioxide and water are produced when acids react with carbonate compounds. Therefore, if an acid reacts with a particular mineral and produces carbon dioxide, that mineral contains carbonate compounds.
Fast neutron detection by helium 3 ionization chamber?
Helium-3 has a high cross section for thermal neutron absorption. For fast neutrons you must either thermalize the neutrons for use with boron or helium-3 based proportional counters or use a fast fission chamber based on fast fission of uranium. It's worth noting that a uranium based fast fission detector is really only useful in extraordinarily high neutron fluxes like that of a reactor.
Give three reasons why it is difficult to identify a mineral by its color alone?
A mineral's color may be influenced by inclusions of other elements or minerals, or even exposure to heat, light, and radiation. A more reliable identification based on color would be the streak, or color of the powdered mineral.
Can solder flux get old?
Rosin flux will probably last hundreds or even thousands of years. I suspect that fossil amber would work as a decent flux. The solvent in liquid organic fluxes may evaporate, leaving a solid. Some paste fluxes are water based and the water will evaporate.
Do some alien races have mineral-based characteristics?
Some alien races could have mineral based characteristics, if they exist.
The old welding machines used electromagnetic winding to step up the current for welding rods. What is the new principle inside the welding machines?
The new principal inside welding machines is based on metal-arc welding, whereas the older welding machines used electromagnetic winding to increase the current in welding rods.
Why is mineral's streak more useful in identifying a mineral than its color?
Because color can vary based on the purity of the mineral.
The range of acceptable lens shades for a particular application is based on what welding parameter?
Amperage!
What are advantages of mineral based industry?
Iron and steel, cement, aluminum, machine tools, petrochemicals producing industries are called mineral based industries.Mineral based industries are primary industries that use mineral ores as their raw materials. The products of these industries feed other industries. Iron made from iron ore is the product of mineral based industry. This is used as raw material for the manufacture of a number of other products, such as heavy machinery, building materials and railway coaches.
Do some alien races look like mineral-based anthropomorphs?
If aliens do exists, it could possible that they look like mineral-based anthropomorphs.
Is underwater welding something that requires a school-based education?
Underwater welding is the process of using an energy source that produces lots of heat to melt together large pieces of metal while diving underwater. There are many great underwater welding schools that can provide this training. You can find these listed from the American Welding Society.
When a mineral attracts iron-based materials it is what?
magnetic
Calcite is an example of what?
A mineral based on calcium carbonate.
What a mineral attracts iron-based materials it is .?
magnetic
What a mineral attracts iron-based materials it is?
magnetic
