nekengren,
Your YouTube link in this thread is not working, only saying 'video was removed by user'
On your blog, the video link there is not actually a link, so I need to copy the highlighted text and use that to get to the video.
The project seems really well done, software, Arduino and assorted minerals in a nice cabinet.
But you think Zircon is really cool, I want to know more about the rock to the left of Zircon in your display cabinet.
Why you might ask?
You see, it is very special, it has an amazing property I have not seen in any ordinary mineral.
If you look closely while you are talking about the properties of Zircon, this other mineral I am mentioning is quietly flashing away!
No, it's not bioluminescence and it's not electroluminescence, it must be geoluminescence!
I wonder if it is the special and much unknown geoluminescence uses 'blink without delay'?
Apart from that, great educational project.
Paul