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Rock flour, or glacial flour, consists of clay-sized particles of rock, generated by glacial erosion or by artificial grinding to a similar size. Because the material is very small, it is suspended in river water making the water appear cloudy. If the river flows into a glacial lake, the lake may appear turquoise in color as a result. Examples of this are Lake Louise and Peyto Lake in Canada and Gjende lake in Norway. [edit]Formation Natural rock flour is typically formed during glacial migration, where the glacier grinds against rock beneath it, but is also produced by freeze thaw, where the act of water freezing and expanding in cracks helps break up rock formations. Although clay-sized, its particles are not clay minerals but typically ground up quartz and feldspar. Rock flour is carried out from the system via meltwater streams, where the particles travel in suspension. Rock flour particles can travel great distances either suspended in water or by the wind, in the latter case forming deposits called loess. EXTRACT from Wikipedia under ROCK FLOUR definition.

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Can you melt turquoise?

Turquoise is a hydrous phosphate mineral that is typically stable up to temperatures of around 572 degrees Fahrenheit (300 degrees Celsius). Above this temperature, turquoise can begin to lose its color and structural integrity. While it is technically possible to melt turquoise at higher temperatures, it is not recommended as it can lead to irreversible damage and loss of its unique characteristics. Turquoise is best preserved by avoiding exposure to high heat.


How does adding salt to water effect evaporation?

Adding salt to water increases the boiling point of water, which in turn can decrease the rate of evaporation. However, once the water is in the liquid state, the presence of salt does not significantly affect the process of evaporation.


Will salt water remain frozen longer than fresh water?

Fresh water freezes at 32°f (0°c) at sea level. Sea water freezes at 28.4°f (-2°c) at sea level. Salt water depends on the concentration of salt. At maximum saturation salt water (23.3% by weight) freezes at -5.98°f (-21.1°c).


What is water desalination?

Water desalination is the process of removing salt and minerals from seawater to make it suitable for drinking or irrigation. This is typically done through methods such as reverse osmosis or distillation to separate the salt from the water, producing freshwater for consumption. Desalination is an important technology in areas where freshwater resources are limited.


What goes in boiling water to turn black?

Tea leaves go in boiling water to turn black.

Related Questions

Is lake Huron salt water or fresh water?

No lakes in the world have saltwater and fresh water because if salt water entered a fresh water lake, the fresh water would turn into salt waterRead more: What_lake_has_both_salt_water_and_freshwater


What color will river lake or stream turn if you add universal indicator?

green as most lakes and rivers are fresh water, so neutral.


How does fresh water turn salty?

From erosion


How can you turn sea water into fresh water on a large scale?

boil the water


How do you turn saltwater to fresh water?

Distillation or evaporation.


How do you turn fresh water in to saltwater?

By adding salt on it


Why do many lakes in South Dakota turn green in late summer?

Later in summer, South Dakota usually does not get much rain, so the water in the lakes do not get 'stirred' or have fresh water added so that fresh oxygen does not get mixed into the water. Then, the phosphorus in the sediments at the bottom of the lake are released, causing algae to grow. It is this algae growth that makes the lakes "turn green".


How does fresh water turn to salt water?

salt is added, or dissolved into it, oceans are about 30 - 33%


What can you add to fresh squeezed orange juice to keep it fresh tasting and not turn bitter?

water can help make it less bitter try to water it out


What temperature does water turn solid?

The freezing point of fresh water is 0° C or 32° F.


Does ocean river and lake turn into gas?

Of course it does! But not gas. Water vapor gas. The ocean river water or water lake does not turn into water vapor gas all the way. Think about the water cycle. Only a little water is heated by the sun, evaporated, turns into water vapor and is condensed and falls back as precipitation or water.


Does a river turn over like a lake does?

A river does not turn over like a lake does. This is because water in a river is constantly moving, unlike water in a lake. +++ Not sure what you mean, but if by turnover you mean flow, both turn their water over. With very few exceptions (in deserts, and including the Dead Sea), the water flows into a lake and out of the downstream end. You don't notice it except at the inlet(s) or outlet river because the flow is spread so slowed down over a very wide area.