Product information
Blue is a really difficult colour to maintain when exposing to heat. A lot of the blue stones I've tested change colour to various shades of brown, not quite what you're after. I have finally found a fantastic deep intense blue in these LC Spinel that are heat sound. They have been heat tested for kiln firing to 850 degrees C and also torch firing. Remember to let cool naturally as quenching in water would shatter the stone. Price is per stone.