Few items in Opal will be marked. Sahara A sparkling yellow color introduced by Heisey to replace the failed Marigold color, Sahara was well received by the public. Many patterns offered only a few items. Many rare items can be had in Sahara, but you will search long and hard to find them. Tangerine Tangerine will vary in color from a light orange to almost a true red.
Most collectors favor Tangerine on the red side.
The color was diffcult to control because the piece had to be reheated after it was finished in the glory hole to bring out the true coloring. A table setting cannot be put together in Tangerine. Any item in Tangerine will bring high prices.