- organizing design and development of technical systems!
mee t ickets
- summarize meetings and keep track of tasks to be done - with tickets!
- tracking and sharing expenses between participants!
Select gems by size, not by weight!
Gem varieties vary in density, so carat weight is not a good indication of size
Specific gravity is the density of a substance divided by the density of water. Since (at standard temperature and pressure) water has a density of 1 gram/cm 3 , and since all of the units cancel, specific gravity is usually very close to the same value as density (but without any units).
Specific gravity is the term for the relative density of a gemstone. This chart shows the specific gravity for more than 60 varieties of gemstones.
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