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Igneous rock-forming feldspar mineral
Microcline (KAlSi3O8) is an important igneous rock-forming tectosilicate mineral. It is a potassium-rich alkali feldspar. It is common in granite and pegmatites
Microcline
Group of rock-forming minerals
orthoclase (monoclinic) KAlSi3O8 sanidine (monoclinic) (K,Na)AlSi3O8 microcline (triclinic) KAlSi3O8 anorthoclase (triclinic) (Na,K)AlSi3O8 Potassium
Feldspar
Green variety of microcline
green tectosilicate mineral, a variety of the potassium feldspar called microcline. Its chemical formula is KAlSi3O8, which is polymorphic to orthoclase
Amazonite
Igneous rock with very large interlocked crystals
largest crystals are found within pegmatites. These include crystals of microcline, quartz, mica, spodumene, beryl, and tourmaline. Some individual crystals
Pegmatite
Tin oxide mineral
Cassiterite is a tin oxide mineral, SnO2. It is generally opaque, but it is translucent in thin crystals. Its luster and multiple crystal faces produce
Cassiterite
One of the seven crystal systems
Pedial is also triclinic hemihedral. Mineral examples include plagioclase, microcline, rhodonite, turquoise, wollastonite and amblygonite, all in triclinic
Triclinic_crystal_system
Brown-orange feldspar
Sunstone is a microcline or oligoclase feldspar, which when viewed from certain directions exhibits a spangled appearance. It has been found in Southern
Sunstone
Index of articles associated with the same name
KAlSi3O8), an important tectosilicate mineral that forms igneous rock Microcline, chemically the same as orthoclase, but with a different crystalline structure
Potassium_feldspar
Part of the valley of the North Toe River in North Carolina, US
River. Major minerals include plagioclase, microcline, quartz, and muscovite. Perthitic textures on the microcline are possible. Minor minerals include biotite
Spruce_Pine_Mining_District
Green gemstone, a beryl variety
occurs mainly in association with quartz, muscovite, albite, schorl, microcline, fluorite, smoky quartz and elbaite. The word "emerald" is derived (via
Emerald
Feldspar mineral found in igneous rock
lower-temperature polymorph of KAlSi3O8 is microcline. Adularia is a low temperature form of either microcline or orthoclase originally reported from the
Orthoclase
Type of rock
Llanite is a porphyritic rhyolite with distinctive blue quartz and reddish microcline feldspar phenocrysts found in the Llano Uplift north of Llano, Texas,
Llanite
Feldspar Andesine Albite Anorthite Anorthoclase Amazonite Bytownite Celsian Microcline Moonstone Adularia (var.) Rainbow (var.) Orthoclase Unakite Plagioclase
List_of_gemstones_by_species
Glassy mineral left in the dirt after the plutonium-based Trinity bomb test
primarily made of arkosic sand composed of quartz grains and feldspar (both microcline and smaller amount of plagioclase with small amount of calcite, hornblende
Trinitite
Intergrowth of two feldspars
NaAlSi3O8, in composition). Typically, the host grain is orthoclase or microcline, and the lamellae are albite. If sodic feldspar is the dominant phase
Perthite
hurlbutite, beryllonite, amblygonite, apatite, tourmaline, topaz, muscovite, microcline and quartz. Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical
Väyrynenite
Type of igneous rock
granitoids. The alkali feldspar in granites is typically orthoclase or microcline and is often perthitic. The plagioclase is typically sodium-rich oligoclase
Granite
Phyllosilicate mineral
leucosphenite, lorenzenite, galena, albite, pectolite, apophyllite, leifite, microcline and arfvedsonite. Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols"
Carletonite
Ornamental stone, commonly green
small comma-shaped and tubular "jades" using materials such as jade, microcline, jasper, etc., in southern Korea originates from the Middle Mumun Pottery
Jade
American petrologist (1931–2025)
with quartz-free, albite-twinned plagioclase (tan, top). The myrmekite projects into K-feldspar (microcline), black-gray-white, grid-twinning, bottom.
Lorence_G._Collins
Rubidium feldspar mineral
Rubicline, also referred to as Rb-microcline, is the rubidium analogue of microcline, an important tectosilicate mineral. Its chemical formula is (Rb,
Rubicline
Tiny intergrowths of quartz and feldspar in rocks
the replacement was incomplete. The illustration shows tartan-twinned microcline having completely replaced plagioclase. The places with incomplete replacement
Myrmekite
Igneous rock
is composed of two varieties of feldspar (mostly albite but also some microcline), with nepheline, sodalite, cancrinite and calcite. The mafic minerals
Litchfieldite
chrysoberyl) Allingite (synonym of amber) Alum Amazonite (variety of microcline) Amethyst (purple variety of quartz) Ametrine (variety of quartz) Ammolite
List_of_minerals
Adit mine in New Mexico, US
of very coarse quartz, albite, and muscovite. This zone also contains microcline, and has abundant accessory apatite, beryl, and tantalite. Beryl is occasionally
Harding_Pegmatite_Mine
Microcline from the Kenticha mine, Oromia Region, Ethiopia.
Mining_in_Ethiopia
Form of potassium feldspar
monoclinic polymorph stable at lower temperatures. At yet lower temperatures, microcline, a triclinic polymorph of potassium feldspar, is stable. Due to the high
Sanidine
Mountain monument under construction in South Dakota
mainly containing plagioclase (albite to oligoclase composition), perthic microcline, quartz (myrmekitic), and muscovite. Accessory minerals including tourmaline
Crazy_Horse_Memorial
metamorphosed sediments and are common in biotite. It contains quartz and microcline feldspar and brown biotite and also muscovite. It has more biotite and
Geology of the Australian Capital Territory
Geology_of_the_Australian_Capital_Territory
Cyclosilicate, mineral
igneous and metamorphic rocks and veins in association with lepidolite, microcline, and spodumene in granite pegmatites; with andalusite and biotite in schist;
Elbaite
Holocrystalline plutonic rock
potash feldspar, in others the soda feldspar predominates. Fresh clear microcline is very characteristic of some types of nepheline syenite. Sodalite, colorless
Nepheline_syenite
Litchfield, Maine Llanite – Type of rock – A hypabyssal rhyolite with microcline and blue quartz phenocrysts from the Llano Uplift in Texas Luxullianite –
List_of_rock_types
State park in North Carolina, United States
Gneiss is a medium- to coarse-grained, typically well-foliated, biotite-microcline augen gneiss. It consists mostly of oligoclase, quartz, orthoclase, and
Chimney_Rock_State_Park
Chemical solution in solid form
feldspar minerals, for example, have end members of albite, NaAlSi3O8 and microcline, KAlSi3O8. At high temperatures Na+ and K+ readily substitute for each
Solid_solution
Mesoproterozoic pluton in New Mexico, U.S.
Calymmian period. The unit is a pink fine- to medium-grained rock with microcline megacrysts in some locations. It is subtly foliated in some locations
Joaquin_quartz_monzonite
Mineralogy of a mountainous region in the USA
amazonite is usually very pale and grading into ordinary pink or white microcline feldspar. The Tarryall Mountains are famous as being one of the better
Mineralogy of the Pikes Peak Region
Mineralogy_of_the_Pikes_Peak_Region
Variety of beryl
occurs mostly in association with muscovite, schorl, albite, quartz, microcline, fluorite, smoky quartz, cleavelandite and morganite. The largest known
Aquamarine_(gem)
Domed rock formations in the Northern Territory
and volcanic rock fragments with a matrix composed of angular quartz, microcline and orthoclase among other minerals.[citation needed] Both Uluṟu and Kata
Kata_Tjuta
Geological formation in Colorado, United States
color of pink is due to large amounts of the igneous rock-forming mineral microcline feldspar, and several iron minerals, that are abundant in the rock. The
Pikes_Peak_granite
Rock-forming minerals with predominantly silicate anions
Feldspar group Alkali feldspar series (potassium feldspars or K-spar) Microcline – KAlSi3O8 Orthoclase – KAlSi3O8 Anorthoclase – (Na,K)AlSi3O8 Sanidine
Silicate_mineral
Sodium endmember of the plagioclase feldspar series
Albite often occurs as fine parallel segregations alternating with pink microcline in perthite as a result of exolution on cooling. There are two variants
Albite
intrusive of Mont Saint-Hilaire, Quebec. It occurs associated with aegirine, microcline, albite, elpidite, epididymite, taeniolite, pectolite, calcite, galena
Narsarsukite
Oxide mineral
District, Kabba Provence in central Nigeria. It is generally associated with microcline-quartz-pegmatites in small amounts and limited in association only to
Ferronigerite-2N1S
Lithium mine in North Carolina
dikes consist by weight of 20% spodumene, 32% quartz, 27% albite, 14% microcline, 6% muscovite, and 1% trace minerals. Trace minerals include beryl (0
Kings_Mountain_Mine
Mountain and park in Georgia, United States
granodiorite. The minerals within the rock include quartz, plagioclase feldspar, microcline, and muscovite, with smaller amounts of biotite and tourmaline. The tourmaline
Stone_Mountain
Crystal growth process relative to the substrate used as seed
minerals) may have epitaxic relations. An example is albite NaAlSi 3O 8 on microcline KAlSi 3O 8. Both these minerals are triclinic, with space group 1, and
Epitaxy
032 Light blue Glaucophane Monoclinic Biaxial (-) 0.021 Pleochroic blue Microcline Triclinic Biaxial (-) 0.010 None Muscovite Monoclinic Biaxial (-) 0.042
List of minerals by optical properties
List_of_minerals_by_optical_properties
Rare carbonate mineral and raw material for the extraction of strontium
assemblages in cavities in pegmatites, associated with kukharenkoite-(La), microcline, albite, calcite, nenadkevichite, hilairite, catapleiite, donnayite-(Y)
Strontianite
Igneous rock type
of the feldspar content. Diorite may contain small amounts of quartz, microcline, and olivine. Zircon, apatite, titanite, magnetite, ilmenite, and sulfides
Diorite
Deterioration of rocks and minerals through exposure to the elements
hornblende. Biotite then weathers to vermiculite, and finally oligoclase and microcline are destroyed. All are converted into a mixture of clay minerals and iron
Weathering
Mica mineral in the biotite subgroup
syenite pegmatites and granite and aplite greisens. It is associated with microcline and astrophyllite at Pikes Peak, Colorado. It is also found in the alkali
Siderophyllite
Blue tectosilicate mineral
associated minerals include nepheline, titanian andradite, aegirine, microcline, sanidine, albite, calcite, fluorite, ankerite and baryte. Significant
Sodalite
Zeolite mineral
elbaite, cassiterite, columbite, apatite, eucryptite, muscovite, albite and microcline. About 82% of the world's known reserves of pollucite occur near Bernic
Pollucite
Cyclosilicate mineral
common to most igneous material in general. Associate minerals include: microcline, nepheline, aegirine, lamprophyllite, lorenzenite, catapleiite, murmanite
Eudialyte
Sorosilicate mineral
miarolitic cavities in nepheline syenite, associated with nepheline, albite, microcline, aegirine, natrolite, catapleiite, kupletskite, eudialyte, cancrinite
Normandite
Plutonic rock found in New Mexico, US
anhedral pink megacrysts of microcline with a maximum size of 1.5 cm. The ground mass is blue-gray quartz, additional pink microcline, greenish-gray sodium-rich
San_Pedro_quartz_monzonite
Natural history museum in Manhattan, New York
faceted and polished minerals Labradorite specimen Quartz var. agate geode Microcline specimen Quartz var. amethyst geode The David S. and Ruth L. Gottesman
American Museum of Natural History
American_Museum_of_Natural_History
Mountain in Yosemite National Park, California
years ago. Its composition is mainly granodiorite with phenocrysts of microcline. Cathedral Peak was a nunatak during the Tioga glaciation of the last
Cathedral_Peak_(California)
Alkali feldspar mineral
limited solution exists (less than about 5% on both the low albite and microcline ends). Anorthoclase and high albite exhibit triclinic symmetry, whereas
Anorthoclase
Census-designated place in Virginia, United States
Morefield Mine. Amazonite is a crystallized stone, a green variety of microcline feldspar. A countywide festival called Amelia Day is held each May on
Amelia_Court_House,_Virginia
Microcline from the Kenticha mine, Oromia Region, Ethiopia.
Economy_of_Ethiopia
Silica-undersaturated aluminosilicate mineral
between nepheline and kalsilite, similar to the miscibility gap between microcline and albite. A composition falling in this gap will experience exsolution
Nepheline
Town in North Carolina, United States
Gneiss is a medium- to coarse-grained, generally well-foliated, biotite-microcline augen gneiss. It is finer grained and more foliated adjacent to the Brevard
Chimney_Rock,_North_Carolina
City in Texas, United States
brown rhyolite porphyry with sky-blue quartz crystals and rusty-pink microcline feldspar, is found nowhere else in the world except in Llano County. Llanite
Llano,_Texas
Type of granite containing orthopyroxene
rocks of many different types, some being felsic and rich in quartz and microcline, others mafic and full of pyroxene and olivine, while there are also intermediate
Charnockite
Exhibition halls at the American Museum of Natural History in New York City
Labradorite specimen Quartz var. amethyst geode Quartz var. agate geode Microcline specimen The new exhibits explore a range of topics, including the diversification
Allison and Roberto Mignone Halls of Gems and Minerals
Allison_and_Roberto_Mignone_Halls_of_Gems_and_Minerals
River in Pennsylvania, United States
miles turns south into a region of felsic gneiss, which contains quartz, microcline, pyroxene, and biotite. Appalachian Division, Piedmont Province, Upland
Neshaminy_Creek
Phenomenon in crystallization
most commonly twinned crystals are the feldspar minerals plagioclase and microcline. These minerals show the Albite and Pericline Laws. The most common twin
Crystal_twinning
Index of articles associated with the same name
show fine parallel twin laminae, typically found in the alkali feldspar microcline. The twinning results from a structural transformation between high temperature
Pericline
Science that applies chemistry to analyze geological systems
minerals are practically confined to deep-seated intrusive rocks, e.g., microcline, muscovite, diallage. Leucite is very rare in plutonic masses; many minerals
Geochemistry
Ancient Egyptian word nšmt, referring to amazonite, a blue-green form of microcline feldspar. The Greek and Latin translations here (Septuagint's λιγύριον
Gemstones_in_the_Bible
Sodium titanium silicate mineral
nepheline syenites and pegmatites in association with aegirine, nepheline, microcline, arfvedsonite, elpidite, loparite, eudialyte, astrophyllite, mangan-neptunite
Lorenzenite
Mountain in Wicklow, Ireland
Wicklow, Ireland Parent range Wicklow Mountains OSI/OSNI grid O0676307049 Topo map OSi Discovery 56 Geology Rock type Granite with microcline phenocrysts
Mullaghcleevaun
Thermal spring system
analcime, anhydrite, calcite, calcium, chalcedony, lithium, magnesium, microcline, muscovite, sodium, sulfate, potassium, and quartz. The Breitenbush hot
Breitenbush Hot Springs (thermal mineral springs)
Breitenbush_Hot_Springs_(thermal_mineral_springs)
collision. Sparagmite is characterized by high feldspar percentages of microcline. Ramberg, Ivar B. (editor) (2007) Landet blir til: Norges geologi (The
Sparagmite
Geological formation in the United States
grained gneiss bearing biotite, microcline, quartz, and plagioclase, with abundant large ovoids (augen) consisting of microcline and/or quartz. The streaked-augen
Baltimore_Gneiss
Hamlet in New York, United States
of Cherry Grove is primarily pine barrens; however, there are several microclines and ecological niches. Raccoons, foxes, squirrels, and many species of
Cherry_Grove,_New_York
Barium-rich feldspar mineral
Formula (K,Ba)[Al(Si,Al)Si2O8] IMA status Grandfathered (1855), variety of microcline or orthoclase Dana classification 76.1.1.3 Crystal system Monoclinic Crystal
Hyalophane
Mountain in County Wicklow, Ireland
O0850301589 Topo map OSi Discovery 56 Geology Mountain type Adamellite with microcline phenocrysts Climbing Easiest route From a car park at the top of nearby
Tonelagee
Rd) 2.EB.25 [810] [811] [812] (IUPAC: palladium bismuthide telluride) Microcline (feldspar: 1830) 9.FA.30 [813] [814] [815] (microlite group (tantalum
List of minerals recognized by the International Mineralogical Association (M)
List_of_minerals_recognized_by_the_International_Mineralogical_Association_(M)
Biotite granite rocks that are considered to be the final fractionation product of magma
greyish-pink coloured, with roughly equal parts plagioclase, quartz, and microcline, and small amounts of muscovite and mafic minerals. The texture of these
Monzogranite
(1090 by 710 by 380 mm). The feldspar consisted of an intergrowth of microcline and albite, of a brownish flesh color, and occurred in large masses reaching
Barringer_Hill
Igneous rock type
contains sufficient potassium to favor production of orthoclase over microcline or potassic oligoclase. Essexites are generally rich in aluminium, alkalis
Essexite
Moreauite Moa Magnesiohögbomite-2N3S Mhög-2N3S Mansfieldite Mfd Melilite Mll Microcline Mcc Morelandite Mldt Magnesiohögbomite-2N4S Mhög-2N4S Mantienneite Mtin
List_of_mineral_symbols
albite, almandine, annite, beryl, aquamarine, biotite, columbite, elbaite, microcline, muscovite, and quartz. "Archived copy" (PDF). Archived from the original
Topsham_quarries
extent, mineralogy. The main minerals are plagioclase feldspar, quartz, microcline feldspar, biotite, and hornblende. The surrounding granite gneiss extends
Siilinjärvi_carbonatite
Mountain in Wicklow, Ireland
grid O1501307403 Topo map OSi Discovery 56 Geology Mountain type Granite with microcline phenocrysts Climbing Easiest route Wicklow Way, from R759 north
Luggala
Mining ghost town in Colorado, United States
DC, OCLC 3603852, especially page 31 on Biotite-Muscovite Granite and Microcline-Quartz-Plagioclase-Biotite Gneiss. Krupar, Joseph J., Jr., "The Ghost
Silver_Creek,_Colorado
Class of high-grade medium to coarse grained metamorphic rocks
The feldspar of the granulites is mostly orthoclase or cryptoperthite; microcline, oligoclase and albite are also common. Basic feldspars occur only rarely
Granulite
Plutonic rock found in New Mexico, US
quartz grains are fractured. With a modal composition of 42% quartz, 40% microcline, and 12% albite, it has the composition of an alkali feldspar granite
Tres_Piedras_Orthogneiss
orthoclase and microcline, which eventually led to an understanding that each class of feldspar possessed unique orthoclase and microcline minerals, one
Philippe_Barbier
United States historic place
a bedrock of felsic gneiss, from the Cambrian, consisting of quartz. microcline, pyroxene, and biotite, buff to pink color and fine to medium grained
Poquessing_Creek
Mountain in County Wicklow, Ireland
grid O1689511338 Topo map OSi Discovery 56 Geology Mountain type Granite with microcline phenocrysts Bedrock Climbing Easiest route via Djouce Mountain
War_Hill
Mineral species of the silicate group
is often associated with the following minerals: albite, lepidolite, microcline, petalite, quartz, spodumene and tourmaline. Germany Uranium mine in the
Cookeite
Mountain in Wicklow, Ireland
Wicklow, Ireland Parent range Wicklow Mountains OSI/OSNI grid T081980 Topo map OSi Discovery 56 Geology Mountain type Adamellite with microcline phenocrysts
Camaderry
Mineral
of agpaitic granites with arfvedsonite. It occurs with smoky quartz, microcline, okanoganite, sogdianite, astrophyllite, and zircon. It is found in cavities
Zektzerite
Geologic formation in New Mexico, US
albite-oligoclase, 27% quartz, 10% biotite, 4% muscovite, and 1% each epidote and microcline. The foliation is defined by biotite knots, up to 2.5 cm in length. The
Maquinita_Granodiorite
Silicate mineral
At the Lovozero Massif in Russia it is formed in areas of rock rich in microcline and albite in the contact zone between pegmatites and fenites (metasomatic
Vlasovite
containing megascopic quartz, averaging 25%, much feldspar (orthoclase, microcline, sodic plagioclase) and mica or other coloured minerals. Rhyolite is the
Glossary_of_geology
minerals: interstitial quartz plagioclase – often zoned, of basic composition microcline – often perthitic biotite Accessory minerals are muscovite, zircon, apatite
Thiviers-Payzac_Unit
MICROCLINE
MICROCLINE
MICROCLINE
MICROCLINE
Girl/Female
Indian, Sanskrit
Goddess
Boy/Male
Hindu, Indian
Boiled or Baked Buckwheat; Section
Boy/Male
Arabic, Muslim
One who Starts Work Early
Boy/Male
British, English
Wild
Girl/Female
Hindu, Indian, Traditional
Innocense
Boy/Male
Anglo Saxon American English
From the hill on the ledge.
Male
Hebrew
(גָּלִיל) Hebrew name GALIYL means "rolling, turning" or "circuit, region, ring." In the bible, this is the name of a circuit or ring (Galilee) of the Gentiles.Â
Boy/Male
Bengali, Indian
Friendship
Girl/Female
American, Australian, British, Christian, Danish, Dutch, English, French, German, Greek, Latin
Light; Pity; Foreign
Girl/Female
Australian, Spanish
Gypsy
MICROCLINE
MICROCLINE
MICROCLINE
MICROCLINE
MICROCLINE
n.
A mineral of the feldspar group, like orthoclase or common feldspar in composition, but triclinic in form.