Keyword Analysis & Research: colemanite


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What type of mineral is colemanite?

Colemanite (Ca 2 B 6 O 11 ·5H 2 O) or (CaB 3 O 4 (OH) 3 ·H 2 O) is a borate mineral found in evaporite deposits of alkaline lacustrine environments. Colemanite is a secondary mineral that forms by alteration of borax and ulexite. It was first described in 1884 for an occurrence near Furnace Creek in Death Valley...

What is Coe colemanite used for?

Colemanite has many important uses. It is a significant ore of boron, and was the most important ore prior to the discovery of Kernite in 1926. It is also used in the manufacture of heat resistant glass, and has other industrial, medicinal, and cosmetic uses. It is a popular collector mineral.

What is the difference between ulexite and colemanite?

Frits are used as boron sources in industry whereas potters and smaller companies have used colemanite. Colemanite does not melt as low or as uniformly as Ulexite. Gerstley Borate contains significant amounts of colemanite.

What is Colemanite borax?

Colemanite, borate mineral, hydrated calcium borate (Ca2B6O11·5H2O) that was the principal source of borax until the 1930s. It typically occurs as colourless, brilliant crystals and masses in Paleogene and Neogene sediments (those formed 65.5 to 2.6 million years ago), where it has been derived


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