How is titanium quartz made
Natural nickel crystals are exceptionally rare usually found only in meteorites , and when they do occur, they are very small a 1 mm natural nickel crystal is considered large. It does occur in naturally as well, as the mineral moissanite, but it is very rare, and crystals are almost always tiny or microscopic. Carborundum silicon carbide is produced artifically in large quantities as an abrasive. Most is crushed and used in griding grits and abrasive papers.
This specimen shows coarsely crystallised hexagonal plates of silicon carbide, with typical rainbow irridescent surface colours. They are not naturally formed and are a man made product.
They have been created using a natural geode which has been filled in with galena. Green quartz can be produced in the lab by a modification of the process used to manufacture large, high-quality quartz crystals for electronics applications. The process involves heating the quartz with water under high pressure. This causes the quartz to recrystallize. If other substances are present these might be included into the new crystals.
It is produced when felsic lava extruded from a volcano cools rapidly with minimal crystal growth. Obsidian is commonly found within the margins of rhyolitic lava flows known as obsidian flows, where the chemical composition high silica content induces a high viscosity and polymerization degree of the lava.
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Aqua aura is created in a vacuum chamber from quartz crystals and gold vapour by vapour deposition. The gold atoms fuse to the crystal's surface, which gives the crystal an iridescent metallic sheen. When viewed under a gemological microscope in diffused direct transmitted light, aqua aura displays the following properties:.
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