Thank you again for a interesting post.
I did know about the pure scientific facts about it, like how hard it is, the chemical formula and so.

But i did not know about the history about it that i also find fascinating :)

The next post in your blog i am about to read now is the one about Alexandrite, and since both this post and the one about diamonds was of high interest for me to read about, i really look forward to it.

And i can only beg you to keep up writing more about this things, i love it! :)