Silicate: A silicate is a compound containing an anionic silicon compound. The great majority of silicates are oxides, but hexafluorosilicate ([SiF6]2−) and other anions are also included.Richterite: Richterite is a sodium calcium magnesium silicate mineral belonging to the amphibole group. If iron replaces the magnesium within the structure of the mineral, it is called ferrorichterite; if fluorine replaces the hydroxyl, it is called fluororichterite.Vivian MasonCalcium aluminosilicate: Calcium aluminosilicate, an aluminosilicate compound with calcium cations, most typically has formula CaAl2Si2O8.Mineral trioxide aggregate: Mineral trioxide aggregate (MTA) was developed for use as a dental root repair material by Dr. Mahmoud Torabinejad, DMD, MSD, PhD Professor and Director of Advanced Specialty Education Programs in Endodontics at Loma Linda University School of Dentistry and was formulated from commercial Portland cement combined with bismuth oxide powder for radiopacity.Ammonium fluorosilicateMagnesium phosphate: Magnesium phosphate is a general term for salts of magnesium and phosphate appearing in three forms:Interstellar cloud: Interstellar cloud is the generic name given to an accumulation of gas, plasma, and dust in our and other galaxies. Put differently, an interstellar cloud is a denser-than-average region of the interstellar medium.Chondrule: Chondrules in the chondrite Grassland|200px|thumb|Chondrules in the chondrite Grassland. A millimeter scale is shown.McLafferty rearrangement: The McLafferty rearrangement is a reaction observed in mass spectrometry. It is sometimes found that a molecule containing a keto-group undergoes β-cleavage, with the gain of the γ-hydrogen atom.Submillimetre astronomy: Submillimetre astronomy or submillimeter astronomy (see spelling differences) is the branch of observational astronomy that is conducted at submillimetre wavelengths (i.e.NebulaSupernova Early Warning System: The SuperNova Early Warning System (SNEWS) is a network of neutrino detectors designed to give early warning to astronomers in the event of a supernova in the Milky Way Galaxy, our home galaxy, or a nearby galaxy such as the Large Magellanic Cloud or the Canis Major Dwarf Galaxy. Enormous numbers of neutrinos are produced in the core of a red giant star as it collapses on itself.Polycrystalline silicon: Polycrystalline silicon, also called polysilicon or poly-Si, is a high purity, polycrystalline form of silicon, used as a raw material by the solar photovoltaic and electronics industry.Silicon dioxidePotassium ferrateShiva crater: The Shiva Crater is a geologic structure, which is hypothesized by Sankar ChatterjeeChatterjee, S. (1997) Multiple impacts at the KT boundary and the death of the dinosaurs.Lunar magma ocean: According to the giant impact hypothesis a large amount of energy was liberated in the formation of the Moon and it is predicted that as a result a large portion of the Moon was once completely molten, forming a lunar magma ocean. Evidence for the magma ocean hypothesis comes from the highly anorthositic compositions of the crust in the lunar highlands, as well as the existence of rocks with a high concentration of the geochemical component referred to as KREEP.Carbon dioxide removal: Carbon dioxide removal (CDR) methods refers to a number of technologies which reduce the levels of carbon dioxide in the atmosphere. Among such technologies are bio-energy with carbon capture and storage, biochar, direct air capture, ocean fertilization and enhanced weathering.Robotic spacecraft: 250px|right|thumb|An artist's interpretation of the [[MESSENGER spacecraft at Mercury]]Ganymede (moon)Sodium aluminateBerkefeld filter: A Berkefeld filterDefinition: Berkefeld filter from Online Medical Dictionary is a water filter made of diatomaceous earth or Kieselguhr. It was invented in Germany in 1891, and by 1922 was being marketed in the United Kingdom by the Berkefeld Filter Co.Bentonite: Bentonite is an absorbent aluminium phyllosilicate clay consisting mostly of montmorillonite. The absorbent clay was given the name "bentonite" by Wilbur C.Circumbinary planet: A circumbinary planet is a planet that orbits two stars instead of one.Silicone foamBreast prosthesesElectrolysis: In chemistry and manufacturing, electrolysis is a technique that uses a direct electric current (DC) to drive an otherwise non-spontaneous chemical reaction. Electrolysis is commercially highly important as a stage in the separation of elements from naturally occurring sources such as ores using an electrolytic cell.Aluminium toxicity in dialysis patients: Aluminium toxicity is a problem for patients on haemodialysis. The dialysis process does not efficiently remove excess aluminium from the body, so it may build up over time.CeramicList of largest volcanic eruptions: In a volcanic eruption, lava, tephra (volcanic bombs, lapilli, and ash), and various gases are expelled from a volcanic vent or fissure. While many eruptions only pose dangers to the immediately surrounding area, Earth's largest eruptions can have a major regional or even global impact, with some affecting the climate and contributing to mass extinctions.AdsorptionGermanium tetrafluoridePhosphogypsum: Phosphogypsum refers to the gypsum formed as a by-product of the production of fertilizer from phosphate rock. It is mainly composed of gypsum (CaSO4·2H2O).Mars Orbiter Laser Altimeter: [Martian hemispheres by MOLA.jpg|right|thumb|260px|MOLA topographic images of the two hemispheres of Mars.Eco-friendly dentistry: Eco-friendly dentistry"What is Eco-friendly Dentistry is defined by various dentists and dental organizations and primarily consists of general dentistry, oral surgery and other specialty dental services featuring green practices to reduce impact on the eco-system, the environment and patient treatment practices.List of minerals (complete): Mineralogy is an active science in which minerals are discovered or recognised on a regular basis. Use of old mineral names is also discontinued, for example when a name is no longer considered valid.Protein-ribulosamine 3-kinase: Protein-ribulosamine 3-kinase (, FN3KRP, FN3K-related protein, FN3K-RP, ketosamine 3-kinase 2, fructosamine-3-kinase-related protein, ribulosamine/erythrulosamine 3-kinase, ribulosamine 3-kinase) is an enzyme with system name ATP:(protein)-N6-D-ribulosyl-L-lysine 3-phosphotransferase. This enzyme catalyses the following chemical reactionElectrophilic substitution of unsaturated silanes: Electrophilic substitution of unsaturated silanes involves attack of an electrophile on an allyl- or vinylsilane. An allyl or vinyl group is incorporated at the electrophilic center after loss of the silyl group.THC-O-phosphateWhite Portland cement: White Taavo Portland cement or white ordinary Portland cement (WOPC) is similar to ordinary, gray Portland cement in all aspects except for its high degree of whiteness. Obtaining this color requires substantial modification to the method of manufacture, and because of this, it is somewhat more expensive than the gray product.Powder coating: [Coating Aluminium Extrusions.jpg|thumb|right|Aluminium extrusions being powder coated]Fiber: Fiber or fibre (from the Latin fibra) is a natural or synthetic string used as a component of composite materials, or, when matted into sheets, used to make products such as paper, papyrus, or felt.fiber.Moonlight: [22-12-47-moonlight.jpg|thumb|A photograph taken by moonlight with an exposure time of fifty minutes.Thermogravimetry: Thermogravimetry (also known by the acronym "TG"; alternative spellings include thermo-gravimetry and thermogravimmetry) is a branch of physical chemistry, materials research, and thermal analysis. It is based on continuous recording of mass changes of a sample of material, as a function of a combination of temperature with time, and additionally of pressure and gas composition.BrittlenessBorosilicate glass: Borosilicate glass is a type of glass with silica and boron trioxide as the main glass-forming constituents. Borosilicate glasses are known for having very low coefficients of thermal expansion (~3 × 10−6 /°C at 20 °C), making them resistant to thermal shock, more so than any other common glass.Natron: Natron is a naturally occurring mixture of sodium carbonate decahydrate (Na2CO3·10H2O, a kind of soda ash) and about 17% sodium bicarbonate (also called baking soda, NaHCO3) along with small quantities of sodium chloride and sodium sulfate. Natron is white to colourless when pure, varying to gray or yellow with impurities.