levyne
A hydrated silicate mineral found in sodium- and calcium-dominated forms.

levynes
plural of levyne

lherzolite
A dark-green igneous rock consisting largely of chrysolite, with pyroxene and picotite.

lherzolites
plural of lherzolite

liebenerite
A form of muscovite with chemical formula KAl₂(AlSi₃O₁₀)(OH)₂.

lingunite
A tetragonal high pressure form of albite, a tektosilicate mineral found in meteorites with formula NaAlSi₃O₈ although calcium may substitute for sodium.

lintonite
A rare zeolite mineral.

lintonites
plural of lintonite

liottite
A hexagonal-ditrigonal dipyramidal colorless mineral with the chemical formula (Na,K)₁₆Ca₈(Al₆Si₆O₂₄)₃(SO₄)₅Cl₄.

lisitsynite
An orthorhombic-disphenoidal colorless mineral that is a potassium borosilicate.

lithomarga
Archaic form of lithomarge.

lithomargas
plural of lithomarga

lithomarge
Synonym of kaolinite.

lithomarges
plural of lithomarge

lodranite
A type of meteorite containing orthopyroxene, olivine, diopside and plagioclase

lodranites
plural of lodranite

lovchorrite
A rare silicate mineral with the chemical formula (◻,Ca,Na)3(Ca,REE)4Ti(Si2O7)2[H2O,OH,F]4 · H2O.

lovozerite
A mineral composed of a hydrated silicate of sodium, potassium, manganese, calcium, and zirconium

lucabindiite
A hexagonal mineral with the chemical formula (K,NH₄)As₄O₆(Cl,Br).

luxulianite
Alternative form of luxullianite.

luxullianite
A kind of granite characterized by the presence of radiating groups of minute tourmaline crystals.

luxullianites
plural of luxullianite

luxulyanite
Alternative form of luxullianite.

magadiite
A soft white hydrous sodium silicate mineral.

magadiites
plural of magadiite

majorite
A silicate of magnesium, iron and aluminium, found in the upper mantle of the Earth, that stores oxygen when under intense pressure

majorites
plural of majorite

manganophyllite
A manganese-rich variety of the mica mineral biotite.

margarodite
A hydrous potash mica related to muscovite.

margarodites
plural of margarodite

mariposite
A chromium-rich variety of mica, giving a green color to the generally white dolomitic marble in which it is commonly found.

mariposites
plural of mariposite

maskelynite
A glassy phase found in some meteorites and impact craters, typically similar in composition to plagioclase feldspar.

maskelynites
plural of maskelynite

mavlyanovite
A manganese silicide mineral with chemical formula Mn₅Si₃.

mazzite
A variety of zeolite.

mazzites
plural of mazzite

mboziite
a sodium containing amphibole.

medvedevite
A red monoclinic mineral with the chemical formula KMn2+2V2O6Cl·2H2O

meionite
A silicate mineral belonging to the scapolite group.

meionites
plural of meionite

mendozavilite
A monoclinic mineral containing calcium, hydrogen, iron, magnesium, molybdenum, oxygen, phosphorus, sodium, and strontium.
A group of said minerals with a common chemical base.

mesolite
A mineral with monoclinic crystals, Na₂Ca₂Al₆Si₉O₃₀·8H₂O, of the zeolite group.

mesolites
plural of mesolite

mesoperthite
A perthite having feldspars in roughly equal proportions.

metakaolinite
A metamorphosed kaolinite.

metallozeolite
Zeolite containing metal atoms trapped in the cavities of its lattice.

metallozeolites
plural of metallozeolite

metaphonolite
A metamorphosed phonolite.

meyerhofferite
A hydrated borate mineral with the chemical formula Ca₂B₆O₆(OH)₁₀ · ₂(H₂O).

meyerhofferites
plural of meyerhofferite

microcline
A common feldspar of igneous, plutonic, and metamorphic rocks, made of potassium aluminum silicate, with the chemical formula KAlSi₃O₈.

microclines
plural of microcline

microspecies
A genotype that is perpetuated by apomixis.
A small, typically localized population of organisms that is slightly yet effectively distinct from other closely related forms; a group less inclusive than a species, similar to a subspecies.

millosevichite
A rare mineral with the chemical formula Al₂(SO₄)₃, forming white to yellowish cryptocrystalline masses.

millosevichites
plural of millosevichite

minnesotaite
An iron magnesium silicate of the talc group

minnesotaites
plural of minnesotaite

monchiquite
A black, basaltic igneous rock consisting of a ground mass of automorphic augite and magnetite with many embedded phenocrysts, usually of olivine.

monchiquites
plural of monchiquite

monradite
a type of pyroxene composed of an iron and magnesium silicate

montmorillonite
Any of a group of soft, clay-like silicate minerals having many industrial and technical uses.

montmorillonites
plural of montmorillonite

montmorilonite
Alternative form of montmorillonite.

montmorilonites
plural of montmorilonite

mooihoekite
A tetragonal-scalenohedral mineral with the chemical formula Cu₉Fe₉S₁₆ containing copper, iron, and sulfur.

moonstone
A translucent gemstone, an orthoclase feldspar, that has a pearly lustre.

moonstones
plural of moonstone

mosandrite
A rare sorosilicate mineral consisting of sodium, calcium, zirconium, titanium and cerium.

moschellandsbergite
A rare isometric mineral made up of a silver-white amalgam of mercury and silver, having the chemical formula Ag₂Hg₃.

muscovite
A pale brown mineral of the mica group, being a basic potassium aluminosilicate with the chemical formula KAl₂(Si₃Al)O₁₀(OH,F)₂; used as an electrical insulator etc.

muscovites
plural of muscovite

mussite
A variety of pyroxene; diopside.

mussites
plural of mussite

nacrite
A basic aluminium silicate clay that is a polymorph of kaolinite

nacrites
plural of nacrite

naldrettite
A mineral with a chemical formula of Pd₂Sb.

nanomontmorillonite
Alternative form of nano-montmorillonite.

nanozeolite
A zeolite that has nanosized pores

nanozeolites
plural of nanozeolite

natrolite
A fibrous zeolite mineral, being a sodium aluminosilicate, of the chemical formula Na₂Al₂Si₃O₁₀·2H₂O.

natrolites
plural of natrolite

necrolite
Synonym of necronite.

necronite
A kind of foul-smelling feldspar.

nenadkevichite
A rare silicate mineral containing niobium.

nenadkevichites
plural of nenadkevichite

neolite
A dark green silicate of aluminium and magnesium.

neolites
plural of neolite

nepheline
A feldspathoid mineral of silica-poor igneous, plutonic and volcanic rocks. Chemically, nepheline is a plagioclase feldspar with insufficient silica to satisfy the chemical bonds. Because of the unfilled bonds, nepheline weathers rapidly and can only be seen as inclusions in freshly broken rock.

nephelines
plural of nepheline

nepouite
A rare apple-green nickel silicate mineral.

nesosilicate
Synonym of orthosilicate.

nesosilicates
plural of nesosilicate

niigataite
A particular epidote mineral.

nordite
A rare, light brown, orthorhombic zinc silicate mineral discovered in the Kola peninsula, Russia.

noumeaite
Alternative form of noumeite.

noumeite
Synonym of garnierite.

nyerereite
A mineral with the chemical formula Na₂Ca(CO₃)₂.

nyerereites
plural of nyerereite

offretite
A hexagonal prismatic form of zeolite

offretites
plural of offretite

okanoganite
a trigonal rare earth fluoro borosilicate mineral.

okenite
A silicate mineral associated with zeolites, having the chemical formula (CaSi₂O₅·2H₂O).

okenites
plural of okenite

olivine
Any of a group of olive green magnesium-iron silicate minerals that crystallize in the orthorhombic system.

olivines
plural of olivine

omphacite
Any of a range of green, monoclinic pyroxene minerals found in eclogites and similar rocks; they are solid solutions of jadeite and diopside.

omphacites
plural of omphacite