![](/template/termwiki/images/likesmall.jpg)
Home > Terms > English, UK (UE) > Lawsonite
Lawsonite
A metamorphic silicate mineral related chemically and structurally to the epidote group of minerals. Its composition is Ca(H2O)Al2(OH)2(Si2O7), and it is a sorosilicate based on the dimeric (Si2O7)6− radical, where two (SiO4) tetrahedra link at a common vertex to form a bow-tie arrangement. The water molecule is bonded directly to the calcium ion and is tightly held. Although the calcium (Ca2+) and the aluminium (Al3+) cations are octahedrally coordinated by anions (and the water molecule), and the silicon cation (Si4+) is tetrahedrally coordinated by the anions, the structure is not limitingly closest-packed.
- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Science
- Category: General science
- Company: McGraw-Hill
- Product:
- Acronym-Abbreviation:
Other Languages:
Member comments
Terms in the News
Featured Terms
IPad trademark
The registered trade name of Apple's popular iPad computers in the U.S and many other countries except China. The trademark allows Apple to use the ...
Contributor
Featured blossaries
Marouane937
0
Terms
58
Blossaries
3
Followers
10 Most Bizarre Houses In The World
![](/template/termwiki/images/likesmall.jpg)
![](https://accounts.termwiki.com/thumb1.php?f=f6adc765-1401860010.jpg&width=304&height=180)
Browers Terms By Category
- Festivals(20)
- Religious holidays(17)
- National holidays(9)
- Observances(6)
- Unofficial holidays(6)
- International holidays(5)
Holiday(68) Terms
- Ceramics(605)
- Fine art(254)
- Sculpture(239)
- Modern art(176)
- Oil painting(114)
- Beadwork(40)
Arts & crafts(1468) Terms
- Organic chemistry(2762)
- Toxicology(1415)
- General chemistry(1367)
- Inorganic chemistry(1014)
- Atmospheric chemistry(558)
- Analytical chemistry(530)
Chemistry(8305) Terms
- General law(5868)
- Courts(823)
- Patent & trademark(449)
- DNA forensics(434)
- Family law(220)
- Legal aid (criminal)(82)
Legal services(8095) Terms
- Lingerie(48)
- Underwear(32)
- Skirts & dresses(30)
- Coats & jackets(25)
- Trousers & shorts(22)
- Shirts(17)