“12.7 x 3.6 x 3.4 cm. This is a large, complete, naturally-etched crystal of ametrine from Bolivia. These crystals take on this weird form from etching by corrosive solutions in the pockets. This one has only hints of the yellowish citrine shade of quartz. The exterior is silky, and you can see through small "windows" how the interior is clear as glass. ”

“12.7 x 3.6 x 3.4 cm. This is a large, complete, naturally-etched crystal of ametrine from Bolivia. These crystals take on this weird form from etching by corrosive solutions in the pockets. This one has only hints of the yellowish citrine shade of quartz. The exterior is silky, and you can see through small "windows" how the interior is clear as glass. ”