Seamanite
Encyclopedia
Seamanite is a very rare manganese
boron
phosphate
, Mn3(PO4)B(OH)6, first discovered in Michigan
under the name "koenigite". The only known occurrences have been Iron
and Marquette
Counties in Michigan, where it forms brown to pink prismatic crystals. It has been found associated with shigaite.
It is named in honor of late Professor Arthur E. Seaman of Michigan Technological University
who discovered it.
Manganese
Manganese is a chemical element, designated by the symbol Mn. It has the atomic number 25. It is found as a free element in nature , and in many minerals...
boron
Boron
Boron is the chemical element with atomic number 5 and the chemical symbol B. Boron is a metalloid. Because boron is not produced by stellar nucleosynthesis, it is a low-abundance element in both the solar system and the Earth's crust. However, boron is concentrated on Earth by the...
phosphate
Phosphate
A phosphate, an inorganic chemical, is a salt of phosphoric acid. In organic chemistry, a phosphate, or organophosphate, is an ester of phosphoric acid. Organic phosphates are important in biochemistry and biogeochemistry or ecology. Inorganic phosphates are mined to obtain phosphorus for use in...
, Mn3(PO4)B(OH)6, first discovered in Michigan
Michigan
Michigan is a U.S. state located in the Great Lakes Region of the United States of America. The name Michigan is the French form of the Ojibwa word mishigamaa, meaning "large water" or "large lake"....
under the name "koenigite". The only known occurrences have been Iron
Iron County, Michigan
-Demographics:As of the census of 2000, there were 13,138 people, 5,748 households, and 3,615 families residing in the county. The population density was 11 people per square mile . There were 8,772 housing units at an average density of 8 per square mile...
and Marquette
Marquette County, Michigan
-National protected areas:* Hiawatha National Forest * Huron National Wildlife Refuge* Ottawa National Forest -University:Northern Michigan University is a four-year university, established in 1899, located in Marquette, Michigan, on Michigan's Upper Peninsula...
Counties in Michigan, where it forms brown to pink prismatic crystals. It has been found associated with shigaite.
It is named in honor of late Professor Arthur E. Seaman of Michigan Technological University
Michigan Technological University
Michigan Technological University is a public research university located in Houghton, Michigan, United States. Its main campus sits on on a bluff overlooking Portage Lake...
who discovered it.