Printed color charts never precisely duplicate the effects you will achieve using our enamel products. This is particularly tru for transparents where background color and thickness of application strongly influence final results. In order to help you select the color you really want. Each packet is approximately a teaspoon per sample color. Quantity may vary. SAMP-D: Is a complete Medium Temperature – Medium Expansion Enamels in 6/20 Mesh For Bead Making (169 colors, 1000 & 2000 series) for Copper, Gold, Silver, Low Carbon Steel & Metal Clay. Normal firing temperature range: 1400-1500°F. Coefficient of expansion range: 258-360 cubic expansion. Reference color chart on Home page for Medium Temperature – Medium Expansion Enamels.