Tiny amounts of volcanic ash are embedded within the glass. If you hold them up to the light, you can see that they are a translucent to sometimes transparent "glass" created in nature by a volcanic eruption. However, we are not certain of the location where the stones sold here were found.Īpache Tears are round nodules of an igneous rock known as "obsidian" that can be polished to a beautiful jet-black luster. Note how their size compares to the quarter in the photo. These stones are much larger than other stones sold on this page of our website. Angelite is not suitable as a ring stone. If you have a nice angelite item, protect it from abrasion and impact. Brushing against many common objects can put an unsightly gouge in angelite. That makes it very soft and easily scratched. Be careful with angelite, because it has a Mohs hardness of only 3 to 3.5. It is often used to make tumbled stones and carved into small sculptures. When of fine color, angelite can be used to make beautiful blue beads, cabochons, and other objects. Slightly bluish gray to grayish blue, often with a bit of brownish or grayish matrix. Celestite is a strontium sulfate, while angelite is a calcium sulfate. Some people report that angelite forms from celestite. These specimens of blue anhydrite are known in the lapidary trade as "angelite". However, in a few locations, most notably at a few sites in Peru, anhydrite can be found with a slightly bluish gray to grayish blue color. Most of the anhydrite found throughout the world has a brown to gray to white color. "Angelite" is a marketing name for a rock composed almost entirely of a mineral named "anhydrite".
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