Polished Datolite Nodule (Bates Coll.)

Item Description

A showy and excellent sawed and polished datolite nodule from the famous Copper Country of Houghton County. The nodule has high luster, a nice porcelaneous texture and the porcelain-white interior is speckled with tiny, rust-red copper inclusions. The outer rim has veinlets of copper and darker datolie. Porcelaneous white nodules in this quality are rare...the quality is very high for this classic Michigan Copper Country material. We have not offered a Michigan datolite nodule in the auctions since August of last year. They are hard to get and are highly desirable. Ex Wallace Bates Collection. 433 grams or nearly a pound, so it is quite hefty. At least 6 more sizable 4 mm slabs can be cut from this nodule. This should go for a premium for the rare porcelain material, in this size.