An incredible thumbnail - superlatives simply cannot describe the beauty of this piece with its ridiculous sparkly covering of microscopic quartz over the deep green pseudo. I will go out on a limb here and pronounce it the prettiest single malachite thumbnail I have ever seen, and one of the prettiest thumbnails, period bar none. It is also pristine and complete on both sides, and sharp as you could wish. Rare material - I have seen only a half dozen pieces from this pocket over the years, and from context we think it came out in the 1970s sometime but that is just a guess. Pricey perhaps, but yes it is really that good.