Peridot, spinel and sardonyx are August's three birthstones. Peridot is a yellow-green stone that comes from the mineral olivine. Some believe its name derives from the Arabic "faridat," or "gem ...
A REPORT of the discovery of olivine in the Orgueil carbonaceous meteorite 1 aroused considerable scepticism 2,3. The identification was based on selected area electron diffraction patterns ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback