Definitions
American Heritage® Dictionary of the English Language, Fourth Edition
- n. A natural white or colorless hydrated calcium borate, Ca2B6O11·5H2O, a principal source of borax.
Century Dictionary and Cyclopedia
- n. A hydrous calcium borate, occurring in white to colorless monoclinic crystals with brilliant luster, and also in white compact masses, in California. In composition it is nearly identical with priceite.
Wiktionary
- n. mineralogy A white, grey or colorless mineral form of calcium borate; a principal source of boron.
GNU Webster's 1913
- n. (Min.) A hydrous borate of lime occurring in transparent colorless or white crystals, also massive, in Southern California.
Etymologies
- Coleman + -ite, named after William Tell Coleman (1824-1893) in 1884. (Wiktionary)
- After William Tell Coleman (1824-1893), American merchant in California. (American Heritage® Dictionary of the English Language, Fourth Edition)
Examples
“It is found in some arid countries, as southern California and Tibet, but is now made commercially from the mineral colemanite, which is the calcium salt of a complex boric acid.”
“The salts contained in these deposits are mainly borax, ulexite, and colemanite.”
“The crude colemanite as mined carries an average of about 25 per cent B_2O_3; it is treated with soda in the manufacture of borax, or with sulphuric acid in making boric acid.”
“The deposits which at present constitute the principal source of domestic borax are not the playa deposits just described, but are masses of colemanite in Tertiary clays and limestones with interbedded basaltic flows.”
“The colemanite occurs in irregular milky-white layers or nodules, mingled with more or less gypsum.”
“The principal boron minerals are borax or "tincal" (hydrated sodium borate), colemanite (hydrated calcium borate), ulexite (hydrated calcium-sodium borate), and boracite (magnesium chloro-borate).”
“Ulexite and colemanite must first form boric acid.”
“[14] Boric acid is a common constituent of several minerals such as borax, boracite, boronatrocaicite and colemanite.”
“[13] Boric acid is a common constituent of several minerals such as borax, boracite, boronatrocaicite and colemanite.”
“The major ores of boron are a small number of borate (boron oxide) minerals, including ulexite (NaCaB5O9. 8H2O), borax (Na2B4O5 (OH) 4. 8H2O), colemanite (Ca2B6O11. 5H2O) and kernite (Na2B4O6 (OH) 2. 3H2O).”
Lists
‘colemanite’ hasn't been added to any lists yet.
Tweets
Looking for tweets for colemanite.
Comments
No comments yet...
Log in or sign up to get involved in the conversation. It's quick and easy.