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searching for Nepheline syenite 31 found (107 total)

Feldspathoid (226 words) [view diff] exact match in snippet view article find links to article

significant nepheline present can be termed a nepheline-bearing syenite or nepheline syenite, with the term nepheline replaceable by any foid mineral. Such terminology

Kola Alkaline Province (373 words) [view diff] exact match in snippet view article find links to article

carbonatites, kimberlites and similar rocks. To this it adds the large nepheline syenite bodies of the Lovozero Massif and the Khibiny Mountains. An estimate

Parisite-(Ce) (400 words) [view diff] no match in snippet view article

parisite, and indeed first described as such, is a mineral from the nepheline-syenite district of Julianehaab in south Greenland. To this the name synchysite

Feldspar (2,434 words) [view diff] exact match in snippet view article find links to article

This article incorporates public domain material from Feldspar and nepheline syenite (PDF). United States Geological Survey. Warr, L.N. (2021). "IMA–CNMNC

Eveslogite (1,462 words) [view diff] exact match in snippet view article find links to article

occurs as an anchimonomineral veinlet that cross-cuts poikilitic nepheline syenite. This mineral appears to resemble yuksporite, as it forms similar

Geology of Mongolia (529 words) [view diff] exact match in snippet view article find links to article

deposits. Northwest of Muren, aluminum deposits are associated with nepheline syenite and sillimanite gneiss. Ophiolite belts often host secondary nickel

Industrial mineral (690 words) [view diff] no match in snippet view article find links to article

Brines Carbonatites Corundum Diamond Dimension stone Feldspar and Nepheline - Syenite Fluorspar Garnet Gem mineral Granite Graphite Gypsum Halite Kaolin

Serra de Monchique (512 words) [view diff] no match in snippet view article find links to article

type locality). At c.63 km2 Monchique the fourth largest miaskitic nepheline-syenite intrusion so far discovered. It is assumed to be of 'laccolithic'

Shire Highlands (979 words) [view diff] exact match in snippet view article find links to article

Plateau south of them. The northern hills are made up of syenite and nepheline syenite, and the Zomba plateau is made up of syenite and quartz syenite, which

National Geological Monuments of India (313 words) [view diff] case mismatch in snippet view article find links to article

Fossil Park Jaisalmer district Rajasthan Fossil Park 18 Kishangarh Nepheline Syenite Kishangarh Ajmer district Rajasthan Rock Monuments 19 Jodhpur Welded

Geology of Malawi (1,061 words) [view diff] exact match in snippet view article find links to article

phyllonite in older gneisses in northern Malawi. Granite, syenite and nepheline syenite intruded rocks and the Mafingi Group experienced low-grade metamorphism

Bauxite mining in the United States (573 words) [view diff] exact match in snippet view article find links to article

deposits were formed during the Eocene from weathering of intrusions of nepheline syenite, an aluminium-rich, silicate-poor, igneous rock. Bauxite is still

Raslakite (332 words) [view diff] no match in snippet view article find links to article

Raslakite Red glassy raslakite in nepheline-syenite from the type locality: Karnasurt Mountain, Lovozero Massif, Northern Region, Russian Federation.

Geology of Brazil (1,978 words) [view diff] exact match in snippet view article find links to article

an alkaline igneous complex intruded older Precambrian rocks with nepheline syenite, gabbro, shonkinite and clinopyroxenite. Alkali basalt erupted in

Leifite (564 words) [view diff] exact match in snippet view article find links to article

Massif associated with albite and natrolite. In Norway it occurs in a nepheline syenite pegmatite on the south eastern part of the island of Vesle Aroya in

Amphibole (1,556 words) [view diff] no match in snippet view article find links to article

as original constituents of igneous rocks rich in sodium, such as nepheline-syenite and phonolite. Pargasite is a rare magnesium-rich variety of hornblende

Meruda Takkar (593 words) [view diff] exact match in snippet view article find links to article

Lakhote, Abhishek; Bhosale, Suraj; Mistry, C P (December 2021). "Nepheline syenite and related rocks at Meruda Takkar hill, northern Kachchh: Neoproterozoic

Geology of Ghana (1,493 words) [view diff] exact match in snippet view article find links to article

columbite, monazite, beryl, spodumene and molybdenite. It also has nepheline syenite and on-shore alluvial deposits of rutile and ilmenite. Ghana has widespread

Geology of Peru (1,600 words) [view diff] exact match in snippet view article find links to article

from 550 to 220 million years ago, leading to granitoid intrusion, nepheline syenite, syntectonic granites and calc-alkaline volcanism. Along the coast

International rankings of Turkey (832 words) [view diff] exact match in snippet view article find links to article

Commodity Summaries. pp. 128–129. Tanner, A.O. (2018). Feldspar and nepheline syenite: U.S. Geological Survey Mineral Commodity Summaries. pp. 58–59. Bray

East Azerbaijan province (2,096 words) [view diff] exact match in snippet view article find links to article

Azerbaijan are glass industries, paper manufacturing, steel, copper and nepheline syenite, oil refinery, petrochemical processing facilities, chemical products

Mining industry of Russia (5,377 words) [view diff] no match in snippet view article find links to article

core activities were the mining and beneficiation of apatite and nepheline-syenite ores at 10 deposits that have estimated combined reserves of 3.5 Gt

Donnayite-(Y) (1,253 words) [view diff] exact match in snippet view article

alkaline complexes and in carbonatites. During crystallization of the nepheline syenite, the alkalinity continues to increase until the very last stage, when

Mineral industry of Armenia (1,700 words) [view diff] exact match in snippet view article find links to article

Ore, LLC) (license dispute with Global Gold Corporation) Tezhasar Nepheline syenite Kotayk Meghradzor Alumina Corporation LLC Meghradzor (Lusajur section)

Geology of Ontario (2,416 words) [view diff] exact match in snippet view article find links to article

the southern portion of the province produces salt, gypsum, lime, nepheline syenite and structural materials (sand, gravel, stone), along with some petroleum

Glossary of pottery terms (4,507 words) [view diff] exact match in snippet view article find links to article

Examples used in ceramics bodies and glazes include feldspar and nepheline syenite. Frit A product made by quenching and breaking up a glass of a specific

Geochemistry (7,063 words) [view diff] no match in snippet view article find links to article

(Olivine) Nepheline or Leucite, Augite, Hornblende, Olivine Plutonic type Nepheline-syenite, Leucite-syenite, Nepheline-porphyry Essexite and Theralite Ijolite

Kingdom of Aksum (8,388 words) [view diff] exact match in snippet view article find links to article

built in the region, a particular type of granite is used called nepheline syenite. It is fine grained and has also been used in historic monuments like

Superior Craton (5,513 words) [view diff] no match in snippet view article find links to article

migmatite, granite - Metarsedimentary successions intruded by tonalite, nepheline, syenite, carbonatite and granite - Ancient forearc / Wawa Terrane (WT) - Calc-alkalic

Dunedin volcanic group (1,999 words) [view diff] exact match in snippet view article find links to article

sedimentary rocks. Within the Dunedin Volcano area at Hoopers Inlet are nepheline syenite plutonic dykes; however, there are no other plutonic rocks in the

Guangzhou (15,435 words) [view diff] no match in snippet view article find links to article

limestone, ceramic clay, potassium, albite, salt mine, mirabilite, nepheline, syenite, fluorite, marble, mineral water, and geothermal mineral water. Since