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The island of South Georgia is unusual among oceanic islands for having pre-Cretaceous sedimentary rocks underlying much of the island and a significant portion of felsic igneous rocks. Two-thirds of the island consists of intensely folded flysch , capped with Aptian age fossils, tuff and greywacke in the Cumberland Bay Series.
Georgiaite found in Dodge County, GA displaying olive green color.. Georgiaite is a rare form of tektite found only in the state of Georgia in the southeastern United States. . These tektites are found in part of the North American strewn field coming from what is believed to be the Chesapeake Bay impact crater in the late Eocene epoch over 35 million years
The geological eastern Blue Ridge includes metavolcanic rocks of the Georgia Gold Belt. [5] From the discovery of gold in the Georgia Gold Belt in 1828, enough gold was mined in the area to cause a branch mint of the United States Mint to be located in Dahlonega, Georgia. The region also includes igneous intrusions of granite and diabase. [6]
Moonstone, one of June's modern birthstones, can appear to be almost clear at times, but is "prized for its blue to white adularescence," according to the International Gem Society.
^ Florida's state gem, moonstone, was adopted to highlight Florida's role in the United States' Lunar program, which landed the first astronauts on the Moon. [81] ^ Since 1983, Massachusetts has had 3 other official state rocks: State Historical Rock (Plymouth Rock), State Explorer Rock (Dighton Rock), and State Building and Monument Stone . In ...
Wassaw Island is one of the Sea Islands.It is located on the Atlantic Ocean off the coast of the U.S. state of Georgia and is within the borders of Chatham County.The island and its surrounding marshlands are part of the Wassaw National Wildlife Refuge, which has a total area of 10,053 acres (40.68 km 2) of marsh, mudflats, and tidal creeks, including approximately 7 miles (11 km) of ...
St. Simons Island is the largest of the Golden Isles, with a permanent population of 12,743 as of the 2010 census. Reachable via the F. J. Torras Causeway, the Island is a tourist destination for its beaches, water sports, boating and fishing, golf, nature trails, historical landmarks, shopping, restaurants and nightlife.
Moonstone cabochon. The most common moonstone is of the orthoclase feldspar mineral adularia, named for an early mining site near Mt. Adular in Switzerland, now the town of St. Gotthard. [1] [better source needed] A solid solution of the plagioclase feldspar oligoclase +/− the potassium feldspar orthoclase also produces moonstone specimens.