「nepheline」の共起表現一覧(1語右で並び替え)
該当件数 : 34件
| Its mineral association includes | nepheline, albite, aegirine, riebeckite, katophorite a |
| f potassic feldspar in the form of sanidine, | nepheline, augite, biotite, and olivine. |
| Nepheline bearing pegmatite vein, parallel and cross c | |
| patite concentrate and 1.8 million tonnes of | nepheline concentrate per year. |
| e and diaspore in bauxite deposits; and with | nepheline, gibbsite, diaspore, natrolite and analcime |
| so characterized by the development of modal | nepheline in their groundmass (visible at highest magm |
| Nepheline in shonkinite from the type locality at Shon | |
| trahedra, which is why essexites crystallise | nepheline instead of plagicolase. |
| Small amounts of | nepheline may be present and apatite is a common acces |
| Litchfieldite: | nepheline, microcline, albite, amphibole, pyroxene, (m |
| Essexite grades into a | nepheline monzogabbro with a decrease in potassium fel |
| These last consist of an intermixture of | nepheline or sodalite and alkali-feldspar. |
| assembly is usually abundant feldspathoids ( | nepheline or leucite), plagioclase, and augite, togeth |
| s usually abundant feldspathoids (leucite or | nepheline), plagioclase, and lesser alkali feldspar. |
| gabbro or monzodiorite primarily composed of | nepheline, plagioclase, with lesser amounts of alkali |
| tite, biotite, calcite, magnetite, monazite, | nepheline, pyrite, pyrochlore, pyroxene and quartz. |
| It is found in | nepheline syenite and in miarolitic cavities in nephel |
| Loparite occurs as a primary phase in | nepheline syenite intrusios and pegmatites. |
| Nepheline syenite rocks: 580+/-10 my- K-Ar, biotite; 7 | |
| ock is a peralkaline igneous rock, typically | nepheline syenite or phonolite. |
| with the borolanite there are other types of | nepheline syenite and pegmatite. |
| At the margins of the outcrop patches of | nepheline syenite occur; usually the nepheline is deco |
| Shonkinite is also used for mafic | nepheline syenite with aegerine-augite as the pyroxene |
| lic pegmatites in the Kola occurrence and in | nepheline syenite in the Magnet Cove igneous complex o |
| It is a rather rare mineral occurring in | nepheline syenite intrusions and agpaitic (peralkaline |
| nits within the complex include carbonatite, | nepheline syenite, phonolite, and ijolite. |
| mineral in alkaline and mafic igneous rocks, | nepheline syenite, melilitite, kimberlites and rare ca |
| or as thin sills, often in association with | nepheline syenite; and they seem to bear a complementa |
| It occurs in | nepheline syenites and pegmatites in association with |
| Nepheline syenites and phonolites occur widely distrib | |
| Callander Bay contains | nepheline syenites, carbonatite, aegirine, amphibole, |
| It occurs as a primary mineral in | nepheline syenites, within hydrothermal cavities in ba |
| -tephrite intrusions in Namibia, and leucite | nepheline tephrite from Hamburg, Germany. |
| The same distinction holds for | nepheline varieties. |
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