Gypsum sometimes occurs in rounded shapes called rosettes or desert roses. These are typically found as deposits in sedimentary beds. Gypsum is a soft mineral, No. 2 on the hardness scale or 1-10 used by geologists. It has many commercial uses, including making of plaster of Paris.
Great for science projects or classroom collection.
Please be aware that this is a natural mineral and as such each piece is one of a kind! The one you receive may not be exactly the same as the ones pictured but it will be similar. Price is per each piece. They come in irregular shapes, sizes and weights. Photo shows three pieces for demonstration purposes only.
A combination of three of our great discovery toys, all in one package!
This smaller transportable Van de Graaff Generator will easily fit in any classroom!
Experience this sphere powered by the sun!
See the constellations visible in the Northern Hemisphere on this watch!
This science kit is an essential introduction to physics knowledge!
This mirascope creates a 3D hologram image!