Holmquistite Holmquistite is a lithium magnesium aluminum inosilicate mineral with chemical formula: Li2(Mg, Fe2+)3Al2Si8O22(OH)2. It is consisting of an alkali and a silicate of iron, magnesium,…
Powers of Multiplication or Exponents Powers of Multiplication or Exponents We know how to calculate the expression 5 x 5. This expression can be written in a shorter way using…
Anthophyllite Anthophyllite is quite a rare stone that belongs to the Amphibole group. It is an amphibole mineral: Mg2Mg5Si8O22(OH)2, magnesium iron inosilicate hydroxide. It’s a magnesium…
Amphiboles Amphiboles are found principally in metamorphic and igneous rocks. It is the name of an important group of generally dark-colored, inosilicate minerals, forming prism or…
Multiplying Fractions Multiplying Fractions To multiply fractions, first, we simplify the fractions if they are not in lowest terms. Then we multiply the numerators of the fractions…
Amicite: Structure and Properties Amicite has a general formula of K2Na2Al4Si4O16·5(H2O). It is a monoclinic-sphenoidal zeolite mineral containing aluminum, hydrogen, oxygen, potassium, silicon, and sodium. The name is in…
Amesite Amesite is a mineral with the general formula of Mg2Al2SiO5(OH)4. It is an apple-green chlorite mineral occurring in foliated hexagonal plates Amesite crystallizes in the…
Ameghinite Ameghinite, formula- Na[H4B3O7] or NaB3O3(OH)4, is a mineral found in Argentina. It is a soft mineral with a Mohs hardness of 2-3. Ameghinite has a…
Relation between Arithmetic Means and Geometric Means The arithmetic mean, also called the average or average value, is the quantity obtained by summing two or more numbers or variables and then dividing…
Amblygonite Amblygonite is a fluorophosphate mineral, (Li, Na) AlPO4 (F, OH), composed of lithium, sodium, aluminum, phosphate, fluoride, and hydroxide. It is a relatively common phosphate…
Amarantite Amarantite is an amaranth-red to brownish mineral with the general formula of Fe23+O(SO4)2.7H2O or Fe3+(SO4)OH. 3H2O. It is a rare secondary mineral that occurs in…
Amakinite Amakinite is a semi-transparent yellow-green hydroxide mineral belonging to the brucite group that was discovered in 1962. Its chemical formula is written as (Fe2+, Mg)(OH)2.…