As time passed, the changes in cold and heat eventually caused the sandy sediment to harden. Many of these streams and rivers dried up, leaving the rocks behind. The current had slowed, so the heavier stones fell into the sandy sediment. This is believed to have begun in Canada.Īs the weather changed, some of these pebbles, now all mixed together, were deposited in troughs along the river beds. These pebbles included such stones as red and brown jasper, hematite, chert, and quartz, along with other stones in the area. Things started near a network of rapidly-flowing streams where pebbles of many types were found being tossed about in the current. Puddingstones started their formation at least 23 billion years ago. These are only a sampling of the many different types of puddingstones you can find. These stones contain pieces of brown and red jasper, which is a type of quartz. Joseph Island Puddingstone: Can be found in the Ontario, Canada area. Plumstead Commons Puddingstone: From London, England, these have been around since the Ice Age and are the source of many local legends.Roxbury Puddingstone: Found in and around Boston, Massachusetts, and is one of the reasons this stone is the official state stone.Bearfort Mountain Puddingstone: Found in northern New Jersey and boasts bright purple stones.Hertfordshire Puddingstone: These are mainly located in Hertfordshire, England.Some of the more popular types of puddingstone are: It is also where most of the really large stones have been found. This stone is believed to have come into the area way back in the time of the Ice Age. The most popular is Michigan Puddingstone, which has been part of the traditions in the Michigan area for generations. While other sandy materials have been found throughout the world, white quartz is the most popular. The lighter material that has become a home for these pebbles is most often white quartz sand. This is because these pebbles were once single stones lying in stream beds. ![]() There are also a variety of sizes and colors. The pebbles that are embedded are often rounded but they can be of various shapes. This is what has long been referred to as a puddingstone. Walking along, you come across a stone that appears to be several round pebbles embedded in a lighter stone. The Great Lakes region is very popular for hunting this unusual stone. This is especially true if you spend much time near flowing streams, especially in lower Canada and the upper Michigan areas. You may never have heard the name puddingstone, but it is very likely you have seen at least one. This stone ranges from small pebbles to huge boulders and has been found throughout the world. Green with red spots jasper is the traditional birthstone of March.Puddingstone is the unofficial name given to quartz conglomerate. ![]() The name jasper is derived from the Greek word for spotted or speckled stone (in another source it is believed that the name jasper is derived from the ancient word iaspis). They are straight and parallel rather than concentric (opposite to banded agates). ![]() The bands may range from about one tenth of an inch to one inch in thickness. Jasper frequently show a well-developed banding. Iron combinations is the coloring agent for jasper gemstones.For instance iron oxide is responsible for the red color and oxidized ferric iron (ferrous iron) is responsible for green color. These colors may be patchy in nature, several \(SiO_2\) of them maybe present in the same stone, and they may fade into each other. Yellow, green, and brown colors also exist. It is fine-grained and often strongly marked with orbicular or striped patterns. However, jasper, in addition to or silica, contains an unusually large amount of impurities, mainly iron oxide. Jasper is a granular, opaque variety of chalcedony (agate also belongs to this family) which is a quartz (\(SiO_2\)) mineral.
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