Amethyst and Pyrite from Bulgaria

Home Igneous Sedimentary Metamorphic Rock Cycle Amethyst and Pyrite from Bulgaria Rare New Find…Amethyst and Pyrite from the Chala Mine in Bulgaria These amazing specimens of amethyst and pyrite  have taken the mineral collecting world by storm. These are naturally formed specimens that have not been altered in any way from the way they were…

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Red Beryl

Home Igneous Sedimentary Metamorphic Rock Cycle Red Beryl Red beryl is an extremely rare variety of beryl that receives its red color from trace amounts of manganese. Red Beryl is also known as Bixbite and is sometimes called Red Emerald. This gemstone is the rarest of all beryl gemstones, and is perhaps the rarest of…

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Rock Cycle

Children’s Corner The Rock Cycle A Special Place for Junior Rock Hounds The Rock Cycle at SpiritRock Shop “Junior Rockhound Pages” “The Rock Cycle” The Rock Cycle is a group of changes. Igneous rock can change into sedimentary rock or into metamorphic rock. Sedimentary rock can change into metamorphic rock or into igneous rock. Igneous…

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Metamorphic

Children’s Corner Metamorphic Rocks A Special Place for Junior Rock Hounds SpiritRock Shop “Junior Rockhound Pages” Metamorphic Rocks Metamorphic rocks started out as some other type of rock, but have been substantially changed from their original igneous, sedimentary, or earlier metamorphic form. Metamorphic rocks form when rocks are subjected to high heat, high pressure, hot,…

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Sedimentary

Children’s Corner Sedimentary Rocks A Special Place for Junior Rock Hounds SpiritRock Shop “Junior Rockhound Pages” Sedimentary Rocks Sedimentary rocks…The earth’s surface is constantly being eroded. This means that rocks are broken up into smaller pieces by weathering. Conditions such as wind, water, and ice turn small pieces of rock turn into pebbles, gravel, sand,…

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Tabasco Geodes

Home Igneous Sedimentary Metamorphic Rock Cycle Tabasco Geodes Marquez Mining Tabasco Geode illianite front (1970's) illianite rear (1970's) Charles Albert Tabasco Pendant (2016) illianite necklace (1970's) illianite necklace rear (1970's) Tabasco Geodes, formally known as Illianites, are the world’s smallest geode formation. Tabasco  geodes have a distinct green (with an occasional red) outer shell (rind)…

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Trancas Geodes

Home Igneous Sedimentary Metamorphic Rock Cycle Trancas Geodes Item # TG03127290Trancas Geode from Mexico This specimen weighs 8.1oz (230g) and measures 3.1 x 2.7 x 2.4 inches (80 x 70 x 57mm) Mexico has long been famous for its Geodes. This is a very Thin skinned Trancas Geode we picked up about 5 years ago.…

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San Andreas Fault Geode

Home Igneous Sedimentary Metamorphic Rock Cycle Rare Geode from San Andreas Fault Maps and Fault photos courtesy USGS Public Domain Library Item # SAFG03120004Rare Geode from the San Andreas Fault in California This specimen weighs 2.45 lbs (1113g) and measures 5.5 x 3.5 x 3.1 inches (14 x 9 x 7.9cm) This Rare Specimen was…

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Vaca Muerta

Home Igneous Sedimentary Metamorphic Rock Cycle Vaca Muerta Meteorites Vaca Muerta Mesosiderite Total Mass: exceeding 3782 kg Found: 1861 Location: (25°50’S, 70°23’W) 60 km S.E. of Taltal, Atacama desert, Chile Strewnfield: 11.5 km long, 2.1 km wide Vaca Muerta Meteorites (Dead Cow in Spanish) are differentiated silicate and metal rich meteorite containing many silicate and…

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Nevada Black Rock Desert

Home Igneous Sedimentary Metamorphic Rock Cycle Thundereggs Nevada Black Rock Nevada Black Rock Desert Some of the best and most distinctive Thundereggs are from locations now closed off and unavailable. In this case, the area has been designated a wilderness area by the Bureau of Land Management (BLM) and closed. Wilderness or not, the Black…

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