Quartz, var. Herkimer Diamond Ace of Diamonds Mine, Herkimer County, New York |
Corundum var. Sapphire Potanino Mine, Ilmen Mountains, Russia |
Opal var. Hyalite San Luis Potosi, Mexico |
Adamite on Limonite Ojuela Mine, Mapimi, Durango, Mexico |
Danburite rough and cut San Luis Potosi, Mexico |
Serandite with Aegirine Mont St. Hilaire, Quebec, Canada |