Duda Energy 5sn 5 lb. Sodium Nitrate 99+% Pure Chile Saltpeter Gold Metal Refining Industrial Grade Glass Pottery Enamels (Packaging May Vary)

Copper Sulfate Crystals-10lb Bag (FINE Crystals)

Gallium Metal 50 Grams, 99.99% Pure Melting Gallium - 50g Vial

RotoMetals Copper Chop (1 Pound | 99.9+% Pure) Raw Copper Metal

10 Piece Metal Element Cubes - Density Cube Set for a Periodic Table of Elements Collection - Pure Tungsten Cube, Titanium, Bismuth, Aluminum, Iron, Copper, Chromium, + 4 More (.39 inch/10 mm)

Gallium Liquid Metal 100 Grams, 99.99% Pure Melting Gallium - 100g for Kids and Adults

Cube Density Cubes High Density Element Cube for Element Collections Lab Experiment Material Heavy Small Objects Experience(Titanium,1 Inch)

Gallium Liquid Metal 50 Grams, 99.99% Pure Melting Gallium - 50g Vial, Syringe, Silicone Mold Cubes, and Complete DIY Science Experiment Guide

Generic Gallium Metal 10g 99.99% Pure, Low Melting Point Liquid Metal

STPCTOU Tungsten Cube Pure Metal High Density Cube Laser Engraved Cube for Element Collection Lab Material Periodic Table of Elements Collection DIY Teacher Science Creative Gift (Tungsten, 1 Inch)