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Up for sale is a lot of tektite - with an approximate total weight of 1000 grams (24-26 pieces). The tektites pictured are not the actual ones you will receive, but are an example of what you will receive if you purchase this item. There are about 7-10 different shapes of tektites but the usual shapes are round like a disc, teardrop. or ovoid. The surface may be smooth or rough. The tektite was found in the Guangdong Province, China.
These rocks have a high silica content and are also rich in oxides of potassium, calcium, and aluminum. It is believed that Tektite is formed when a meteorite impact melts material from the Earth's surface and catapults it up to several hundred kilometers away from the impact site. The molten material cools and solidifies to glass.