ALWAYS WEAR GLOVES WHEN HANDLING ROUGH GLASS!1.7LB is the weight of this bunch of pieces alone. They are different shades of teal some are more blue, some more green, and some more both lol. Similar in appearance to malachite, they are not natural malachite. Slag glass Made in the Pittsburgh area of PA no later than the 1940s, but possibly much older. The specific Pittsburgh Plate Glass Co. plant that these items are from opened in 1887 along the Allegheny River in Ford City, PA. It actually turned the town into a boom town for quite some time. These pieces came from a man who worked in that plant in the 1940s. Requests for more photos and questions are always welcome!