Healdsburgites

I read the paper and then told my wife that 2.8 million years ago a meteor one mile wide hit the ground in the Healdsburg area. It threw droplets of molten meteor and earth high in the sky, where they froze and rained down, creating a carpeting of small ovoid objects in the Dry Creek Valley, for example. These objects are called Healdsburgites. This sort of event is quite rare, and now it is under study by some geologists. "Oh yes," my wife replied. "Go look at that little gray rock on my bedroom bookshelf."