Relative density test - Specific Gravity - at home In-air mass / Submerged mass = Specific Gravity This home version isn’t perfect, but it can catch many of the common metal fakes. Fun to play with and kind of magical that someone figured this out. Always best to use multiple testing methods. *Submerged the string for about a minute before testing to help with string error, city water filtered through 4 filters #specificgravity #densitytest #density #mass #silver #silverbar #preciousmetals #science #physics #water #soundmoney #soundmoneymetals