Chalcedony is the form of Quartz that is compact and microcrystalline.
You will get a set of ten Quartz chalcedony chunks approximately 1 inch in size.
Great for classroom rock collections, science fair projects, and geology demonstrations.
Please be aware that this is a natural mineral, and as such, each piece is one of a kind! The set you receive may not be the same as the ones pictured, but it will be similar. Rocks come in irregular shapes, sizes and weights.
Welcome to xUmp.com, your one-stop shop for all your scientific and STEM needs! Our extensive selection of science supplies has been carefully curated by real scientists and educators, ensuring that you'll find only the best and most educational products on our site. Whether you're a teacher looking for classroom supplies, a student gearing up for a science fair, or a science enthusiast looking for the perfect gift, we've got you covered. From chemistry glassware and lab equipment to robots and science kits, we have everything you need to explore the exciting world of science. Browse our store today and discover the wonder of science!