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PMC is not a traditional material, and so a few pioneers went about tentatively setting cubic zirconia's, and lab grown corundum into the clay. For almost a decade it has been believed that natural stones would be destroyed in the sintering process. And so nobody took the risk. A few brave souls attempted to "cast" diamonds in place in the kiln. Proving to not only be a costly experiment, but.... (2002) Complete Story
Garnets are a group of related minerals which have slight variations in chemistry but a common cubic crystal structure. Many garnets fall in between some varieties and defy assignment to a specific group. When in doubt just call it a garnet. Unless you have your heart set on a blue gemstone, you may want to look at the beauty that garnets offer at a relatively low price.... (1999) Complete Story
here are many minerals accepted as gem materials. Some gem materials are organic in origin rather than mineral, such as amber and coral. Here are some additional gems of interest you may encounter on your gem quest.... (1999) Complete Story
Goshenite is the transparent, colorless, alkali-bearing pure beryl that was discovered in Goshen, Hampshire County, Massachusetts. The Lily Pond mine in a pegmatite near a small lake was the source of crystals accompanied by other pale greenish-blue, bluish-green, yellowish, pink, and white beryl crystals.... (1999) Complete Story
Yellow-green beryl has achieved 'desired gem' status with consumers just within the last few years. Museums were eager to acquire spectacular specimens, while connoisseurs sought it for their collections. However, fashion trendsetters ignored it. As in aquamarine, the iron incorporated into its chemical structure is responsible for the color..... (1999) Complete Story
