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Re: Rocks and Minerals B/C
Posted: April 17th, 2018, 8:49 am
by whythelongface
dxu46 wrote:
The one on the bottom is supposed to be translucent-transparent, slightly brown. I couldn't find a good picture, sorry.
I can't see that making much of a difference.
Blue corundum is most often known as sapphire, regardless of how gemmy it is.
Re: Rocks and Minerals B/C
Posted: April 17th, 2018, 9:15 am
by ScottMaurer19
whythelongface wrote:dxu46 wrote:
The one on the bottom is supposed to be translucent-transparent, slightly brown. I couldn't find a good picture, sorry.
I can't see that making much of a difference.
Blue corundum is most often known as sapphire, regardless of how gemmy it is.
I was look at pictures earlier while making pictures for a test. The variety is supposed to show asterism/chatoyancy caused by inclusions but the picture doesn't exhibit any