These are not your average Tanzanite crystals and raw stones. These raw Tanzanite crystals were brought back during Steve Moriarty's most recent trip to Tanzania. They are straight from D Block in Tanzania. The colors and brilliance with all of them are amazing. Whether a collector using it as a display piece or a person wanting to use it for healing properties, you can be assured your Tanzanite crystal will be a piece to be proud of.