Phlogopite is a mineral species (In the life sciences, the species (from the Latin species, "type") of the silicate group and the phyllosilicate subgroup of the mica family, with the formula KMg3AlSi3O10 with traces (TRACES (TRAde Control and Expert System) is a veterinary health network of...) of Mn;Ba;Cr;Na;Ti;Ni;Zn;Ca;Li;Rb;H2O. (Note that phlogopite is indeed male gender).Described by Johann August Friedrich Breithaupt in 1841, the name derives from the Greek phlogopos which means "like flame", in reference to the color of certain specimens.Phlogopite gives several polytypes to the number (The notion of number in linguistics is dealt with in the article "Number...) of variable layers (In mathematics and logic, a variable is represented by a symbol. It...) .The symmetry (generally the term symmetry refers to the existence, in a...) depends on the stacking of the layers in each polytype.The polytypes are:Edwards, St. Lawrence County, New York (New York, in English New York City (officially, City of New York) to distinguish it from...) , United States.Deposited at the academy (An academy is an assembly of men of letters, scholars and/or artists recognized by their...) of the mines of Freiberg (Freiberg is the name:), Saxony, Germany N°24966.Phlogopite is found in dolomitic dolomites and limestones, as well as in some ultrabasic igneous rocks.The largest crystals come from Kovdor, on the Kola Peninsula (Russia), where they are used as insulation materials.apatite (Apatite is a generic name designating hexagonal phosphates of composition...) , augite, calcite (Calcite is a chemical or biochemical mineral (biomineralisation) composed of...) , diopside, dolomite (Dolomite is a mineral species formed of calcium carbonate and...) , epidote, magnetite (Magnetite is a mineral species composed of iron(II,III) oxide...) , scapolite, olivine, titanite, tremolite (La tremolite is a mineral species of the group of silicates, subgroup of...) vesuvianite (Vesuvianite, is a mineral species of the group of silicates, subgroup of...)