I bought this from a friend of mine who is a gem and mineral specialist and dealer. This was purchased about 25 years ago to. I cannot count how many specimens there are, The majority of the specimens in this matrix are about 1 inch and diameter, some of them have been halved by the mining process, but at auction this would’ve sold for up to US$200,000, two years ago. The market has dropped slightly because lab produced Paraiba is currently being made This is a 6 pound treasure trove of the most valuable mineral/gem in the world. It’s value is comparable to natural diamonds. Collector alert! There are not many of these around. Most of the geologist I see gout have never seen one even. Due to the rarity, size, number of specimens, bright, blue, purple, and surrounded by black, often terminated, I am going to price accordingly. If you have any questions, feel free to ask. I am going to get this appraised by gemologist. It might be a museum piece . it is a gorgeous specimen and there is nothing out there like it. I dare you to find a piece like this! Starts at $30,000. US. SERIOUS OFFERS ONLY. convert grams to karats and see the insane number Price will be adjusted according to appraisal, unless the appraiser buys it. Price may go up Each of those veins of specimen contain the brightest, most neon blue color of gemstone in the world. Each karat is worth thousands. This piece is about 13,000 karats, including quartz matrix. unknown how many are still in the matrix