SK47AD3: Aggregate of very Sharp rhombohedral Siderite crystals, with polycrystalline growths and a single cubic Fluorite crystal, transparent and with a blue color and violet color zones. We note the locality which is really uncommon.
The sample is from the Francesco S. Stoppani collection (catalog number 0614), and was previously in the J.H. Marshall Jr. collection (catalog number 2640). We'll send to the buyer the Stoppani label and the label and card from the Marshall Jr. collection. As is the case with so many specimens in this collection, the sample is of great quality for the locality.
Khoroshiv (Volodarsk-Volynskii), Zhytomyr Oblast  Ukraine

Specimen size: 6.7 × 4.9 × 3.6 cm = 2.64” × 1.93” × 1.42”