Amethyst & Rose Quartz Palm Stones

Selling a set of Amethyst and Rose Quartz palm thumb stones! They are smooth and polished and feel great in your hand. The amethyst stone is about 4.5cm/1.77in and the rose quartz is about 3.5cm/1.37in. They are about 0.7-0.8mm/0.27-0.31in thick and weigh about 15-20g Both are oval , and matte finish! Great for aquariums , mantel display, meditation, yoga, gifts. or personal use? I have a set my self and have them in my fish tank. The gold fish are curious. circle around them and are baffled? The try and eat the stones?