Well robbieweeks, where on God's green Earth do you live? Could be a grown crystal from a chemical set. I will look for similar crystals but narrow down the geographic part for me. I can eliminate some thing ps just by where you found it. For example, if you live in Boston, it is unlikely to be natural. If you live a few feet away from a river or an alluvial flow minerals are found all the time. There has to be a way it got there.
There is also no dirt/soil and no host rock which makes me feel it was grown chemically.