Siderite after ArfvedsoniteAlkaline Region * Malawi * We Buy Collections * 3.5 x 3 x 2 inches is a very nice and unique specimen of Siderite after Arfvedsonite. The crystal itself measures 2.25 inches tall, alos has some small Quartz crystals and shiny black bladed crystals growing on the termination, maybe Henmatite? Hi everyone, thanks for looking at my auctions. I will allow you to bid for 10 days for paying, to combine shipping. Depending on the weight of the items and how many, I usally give a %60 discount off the overall shipping cost. If you don't like the rock, send it back for a full refund, no questions asked. All said and done, have fun bidding. Be sure to add me to your favorites list ! Check out my other items ! The free listing tool. List your items fast and easy and manage your active items.