I love so many different types of stones that choosing a single favorite would be like choosing a favorite dessert-totally impossible. Sometimes you want chocolate, others ice cream, or perhaps it’s fresh fruit you’re craving…
It’s a type of feldspar, like labradorite (another favorite of mine). Feldspars are a family of silicates that make up about 60% of the earth’s crust. Large parts of the moon’s crust are composed of feldspars too.
Moonstone has a beautiful shimmer-called adularia-the traditional color is blue, and the nearly clear moonstone with that ghostly rich blue is especially highly valued. There is also grey moonstone and peach-both have a soft white shimmer, and rainbow, which normally is a white or white/clear base with many different colors. The colors come about because the stone’s structure is layered, and those layers refract light at different angles. (Like a built-in faceting system!)
I like working with rainbow moonstone because of the gorgeous range of colors. The whole rainbow really will appear in some pieces. I also like the fact that each stone will have its own unique pattern of shimmer and color play.
It is a comparatively soft stone. It has a Mohs hardness of 6, which makes it softer than quartz or garnet (though harder than opal) and more easily scratched. I try to avoid the temptation of moonstone rings, since those take the most knocks.
(Title from Cat Steven’s Moonstone.)