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araucaria fossil, araucaria fossilised wood, Crystal World, Crystal World Exhibition Centre and Sales, fossilised wood -

Araucaria, a genus of coniferous trees, is part of the family Araucariaceae, which includes modern species like the Monkey Puzzle tree and Norfolk Island pine. Fossilised wood from Araucaria species, particularly from Madagascar, provides valuable insights into the ancient ecosystems and climatic conditions of the Triassic period, over 200 million years ago .   Geological Context The fossilised wood of Araucaria from Madagascar dates back to the Triassic period, a time when the super continent Pangaea was beginning to break apart. This period is characterized by significant geological and climatic changes, which influenced the distribution and evolution of plant species.  The fossilised...

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agates, Australian Agate, chalcedony, crazy lace agate, Crystal World, Crystal World Exhibition Centre and Sales, minerals, W.A agate -

Crazy Lace Agate, often referred to as the “Laughter Stone” or “Happy Lace,” is a type of chalcedony, a variety of quartz, known for its intricate and colorful banding patterns. These patterns resemble tangled laces or swirls, giving the stone its unique name. This semi-precious gemstone is valued for its aesthetic appeal and metaphysical properties.    Geological Formation of Crazy Lace Agate Crazy Lace Agate forms through a fascinating geological process involving volcanic activity and hydrothermal processes. This process begins deep within the Earth’s crust, where volcanic activity creates cavities and voids in the surrounding rock. Over time, silica-rich fluids,...

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Crystal World, Crystal World Exhibition Centre and Sales, fossils, microbialites, stromatolite -

Microbialites are fascinating rock-like structures formed by the activity of microorganisms, primarily cyanobacteria. These structures are among the oldest evidence of life on Earth, dating back to 3.7 billion years ago. Found in various aquatic environments, microbialites are crucial for understanding the early history of life and the evolution of ecosystems. Shop Our Range Of Microbialites   Formation and Structure Microbialites are formed through the precipitation of minerals facilitated by microbial activity. Cyanobacteria, a type of microbe found in microbialites, play a significant role in this process. They produce exopolymeric substances (EPS), which help trap and bind sediments and minerals,...

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calcite, cave calcite, Crystal World, Crystal World Exhibition Centre and Sales, Mexican cave calcite, mineral, minerals -

Mexico is home to some of the most extraordinary geological formations, and among these, cave calcite stands out for its beauty and scientific significance. Found in various limestone caves across the country, cave calcite formations offer a glimpse into the Earth’s geological processes and history. Geological Formation and Characteristics Cave calcite, primarily composed of calcium carbonate (CaCO₃), forms through the slow deposition of calcium-rich water dripping from cave ceilings. Over time, these deposits create stunning formations such as stalactites, stalagmites, and flowstones. The Naica Mine in Chihuahua, Mexico, is one of the most famous sites for cave calcite, particularly known for...

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Australian tourmaline, black povondarite tourmaline, black tourmaline, Crystal World, Crystal World Exhibition Centre and Sales, dravite tourmaline, minerals, povondarite tourmaline tomkap mines, schorl, tomkap mines, tourmaline, W.A tourmaline -

Black tourmaline, also known as schorl, is a fascinating and highly sought-after mineral. One of the notable sources of this mineral is the Tomkap Mine, located in the Yinnietharra region of Western Australia. The Tomkap Mine, situated in the Upper Gascoyne Shire, is part of a group of mines known for producing high-quality povondarite tourmaline, a variety of black tourmaline. The mine was initially discovered in 1918 and has since become a significant site for mineral collectors and geologists. Shop Black Povondarite Tourmaline Here   Formation Process Black tourmaline from the Tomkap Mine is known for its well-formed crystals, which can...

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