primary minerals in a sentence
Examples
- Betafite, a mineral group in the pyrochlore supergroup, typically occurs as a primary mineral in granite pegmatites, and rarely in carbonatites.
- This list contains working, defunct and future mines in the country and is organised by the primary mineral output ( s ) and province.
- Primary mineral ores found in this region are mica and iron ore in the Chhota Nagpur region, and diamonds, gold and other metals in the Golconda region.
- British mining companies had ventured for primary mineral deposits, resulting in a gold mine in Raub, Pahang and an underground tin mine in Sungei Lembing, Pahang.
- Tantalum, the primary mineral extracted from coltan, is also mined from other sources, and Congolese coltan has represented around 10 % of world production in recent years.
- The various agents act in concert to convert primary minerals ( feldspars and micas ) to secondary minerals ( clays and carbonates ) and release plant nutrient elements in soluble forms.
- It occurs as a primary mineral in nepheline syenites, within hydrothermal cavities in basalts and diabase and in serpentinites in association with zeolites, datolite, prehnite, calcite and serpentine.
- Modern soil science offers the following definition : " Primary Minerals : The thickness of the earth's crust varies from 10 km under the ocean to 30 km under the continents.
- As the primary minerals in soil parent material weather, the elements combine into new and colourful anaerobic ) result in rapid colour flow with complex, mottled patterns and points of colour concentration.
- Three groups of minerals often remain in well-weathered soils : silicate clays, very resistant end products including iron and aluminium oxide clays, and very resistant primary minerals such as quartz.