2 Lb Lab/Assay Silica Sand 70 Meah (Quartz) for Gold & Silver Smelting Flux

This is 2 Pounds of Lab/Assay Grade Silica 70 Mesh - (SiO2, Silicon Dioxide, Sand) QuartzFor use as an ingredient of assaying flux (or flux thinner) for melting or smelting gold and other precious metals. Warning!! Always work in a safe ventilated area, use all proper safety gear and follow safety procedures to prevent injury. We at MakeYourOwnGoldBars have no control over how any chemicals are used and equipment is used or in how others follow instructions so we cannot be responsible for any injury or property damage that might occur.