Very Rare White Cryolite 925 Silver Ring from Greenland - Size 6 - 2.0 Grams minerals each precision-cut into an oval

each precision-cut into an oval and set in gleaming sterling silver

This is a very nice and rare lot of 10 Prophecy Stones - Limonite after Pyrite pseudomorph - from Egyptian dessert in a very unusual shapes

74 Grams / 38

Natural Precious Opal with nice play of colors from Ethiopia

Very Rare White Cryolite 925 Silver Ring from Greenland - Size 6 - 2.0 Grams minerals each precision-cut into an ovalThis is white Cryolite with pearly luster 925 silver ring from Greenland. Cryolite, or sodium aluminum fluoride (Na3AlF6), consists of 12. 85 percent aluminum, 54. 30 percent fluorine, and 32. 85 percent sodium. Cryolite is not only ice like in appearance; its name, which stems from the Greek words kryos, or "ice," and lithos, or "stone," means "ice stone." Greenland's indigenous Inuit called cryolite "the ice that never melts." It is rare, and its