Corundum – Some bright orange colors are induced in sapphires with a pale yellow natural color. The color in these is not stable and fades upon exposure to light. Topaz – colorless topaz has little ...
Lydia Dyer, gem courtesy John Dyer & Co. Citrine—the transparent, pale yellow to brownish orange variety of quartz—is rare in nature. In the days before modern gemology, its tawny color caused it to ...
When Im leads tours through the glittering alcove, she makes sure to ask students if they know what Texas’ official state gemstone is. They usually don’t know that the answer is blue Topaz.
High priest’s breastplate The high priest’s breastplate was made of gold which was set with 12 different gemstones ... He is stated as having been clothed or covered with sardius, topaz, diamond, ...