These are tiny, polished tumbled stone, perfect for crafting. These are actual stones in natural shape and not glass. Amethyst, jasper, citrine, quartz, mookaite, tiger eye, and others. This is a random assortment of two envelopes, each weighing approx 1.5oz. 

What you see in the first image, in my hand is the actual quantity of stones in both envelopes combined.

3oz is the approximate total weight of both envelopes, with the shipping container, it comes out to about 4oz total, shipped.