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List Of Minerals Recognized By The International Mineralogical Association (D)
__TOC__ D #Dachiardite (zeolitic tectosilicate) 9.GD.40 ##Dachiardite-Ca ( IMA1997 s.p., 1906) 9.GD.4 ## Dachiardite-K (IMA2015-041) 9.GD.4 o o##Dachiardite-Na (IMA1997 s.p., 1975) 9.GD.4 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dargaite
Dargaite is a rare mineral with formula BaCa12(SiO4)4(SO4)2O3. It is the barium Barium is a chemical element with the symbol Ba and atomic number 56. It is the fifth element in group 2 and is a soft, silvery alkaline earth metal. Because of its high chemical reactivity, barium is never found in nature as a free element. Th ...-analogue of nabimusaite, also differing from it in the lack of fluorine. It is one of many recently approved new minerals coming from the Hatrurim complex. Dargaite, as nabimusaite, is trigonal (space group ''R''-3''m''). References Silicate minerals Sulfate minerals Calcium minerals Barium minerals Trigonal minerals Minerals in space group 166 {{mineral-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Danielsite
Danielsite is a sulfide and sulfosalt that was first discovered in a pocket of supergene minerals in the north region of Western Australia. The location found was about west of the locality known as Coppin Pool. The mineral danielsite was named after John L. Daniels who collected the sample in which the new mineral was found. The chemical formula of danielsite is . Danielsite is very fine grained and hard to observe in hand samples. It generally has a gray color with very brittle and soft physical characteristics. Occurrence Danielsite occurs in the mineral anglesite as ragged polycrystalline masses typically intergrown with covellite, stromeyerite, and chalcocite. The size of these masses is typically across. Due to its occurrence with stromeyerite it is thought to possibly be a polymorphic replacement of galena. Danielsite was found in a gossanous pod in a white quartz vein. It has been found near Coppin Pool, Ashburton Shire, Western Australia, Australia, Austria, and Belg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Danburite
Danburite is a calcium boron silicate mineral with a chemical formula of CaB2(SiO4)2. It has a Mohs hardness of 7 to 7.5 and a specific gravity of 3.0. The mineral has an orthorhombic crystal form. It is usually colourless, like quartz, but can also be either pale yellow or yellowish-brown. It typically occurs in contact metamorphic rocks. The Dana classification of minerals categorizes danburite as a sorosilicate, while the Strunz classification scheme lists it as a tectosilicate; its structure can be interpreted as either. Its crystal symmetry and form are similar to topaz; however, topaz is a calcium fluorine bearing nesosilicate. The clarity, resilience, and strong dispersion of danburite make it valuable as cut stones for jewelry. It is named for Danbury, Connecticut, United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 state ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
