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Greensand or Green sand is either a sand or sandstone, which has a greenish color. This term is specifically applied to shallow marinesediment, that contains noticeable quantities of rounded greenish grains. These grains are called glauconies and consist of a mixture of mixed-layer clay minerals, such as smectite and glauconite mica.

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When lighting hits sand does it turn it green?

There are different kinds of sand which produce different kinds of glass when melted, but sand can certainly produce a green glass when melted by lightning.


Where does green sand come from?

Olivine crystals are removed from the eroding land aside the water, by the movement of the sea. Eventually, supply will end, and the sand will look like any other sand. How long it takes for this natural occurrence to 'run out' is dependent upon the amount that is in the land from which it comes.


What should be the maximum percentage of active clay in green sand?

The maximum percentage of active clay in green sand is typically around 5-7%. Exceeding this limit can lead to issues such as poor mold strength, high gas evolution, and difficulty in shakeout. It is important to maintain the proper balance of clay content in green sand to ensure optimal casting performance.


What is a sand of sand called?

its called a sand dune.


What is the Procedures for testing Active clay in Green Sand?

yeah,sure.its so simple to find out the active clay in green sand.Active clay means ,the total active amount of clay(bentonite) present in a sample of green sand.Test Procedure:-Take some sample of green sand and keep it in a oven for 1hr at a temp of 100 deg celsious.This procedure is to make the sand free from moisture.Measure 5gms of this sand after taken from oven and put it in a conical flask with a 50ml of distilled water.Then again keep this in the oven for 10-15 min to boil the solution.Take this from the oven and keep it for a few mins to get cool.Then pour 2ml of diluted h2so4(sulphuric acid) in to the same mixture and place the flask under a burette filled with methylene blue.Then start the titration by leaving methylene blue to the flask containing the above said solution of sand.Shake the flask continously to allow the methylene blue to equally mix with the sand.Stop the titration alternately and place a single drop of solution from the flask in to a filter paper.If you find a light blue ring colour around the dark blue colour(colour of methylene blue) , its the end of itration and read the burette reading.Other wise you can continue titration until you get as above said.calculation:-for example , suppose burette reading is 74there fore active clay = 74/5 =14.8% (for 5gm sample of sand)Hope you understood the procedureThank you.

Related Questions

Which sand used in CO2 molding?

green sand


Why is Hawaiian sand green?

I've never heard of Hawaiian sand being green, but I do know that the Hawaiian sand is black, because it mixes with the ash and soot from the volcanoes nearby.


When lighting hits sand does it turn it green?

There are different kinds of sand which produce different kinds of glass when melted, but sand can certainly produce a green glass when melted by lightning.


Where can you get glass for your green house?

From superheated sand.


Pool sand filter is making your pool green?

The sand filter wont make a pool green this happens a s a result of algae.


Why green sand is called green?

Green sand is a mixture of sand with bentonite clay, pulverized coal, and water used in metal casting. It is not necessarily green in color, but is called green because it is used while wet, like the "green wood" sometimes used by wood turners. Shubham Kanungo Asst Professor Department of Mechanical Engineering Shri Vaishnav Institute of Technology and Science,Indore


Can you remove sand that is in your balls line when on the green?

No you cannot.


How do you fill the green bucket on the mission the vegetable villain?

Well, all you do is you pick up the green sand pail and kinda click the sand around the guy in the lounge chair. It should fill the pail up with sand.


Is it bad to have sand in your green iguana cage?

You should NOT have sand it it's cage. When the reptile eats it will get sand in it's mouth and maybe even kill it.


Is the green sleep shirt authorized with ABU's?

Yes, para 5.1.8.1 says it can either be green or sand


Where does green sand come from?

Olivine crystals are removed from the eroding land aside the water, by the movement of the sea. Eventually, supply will end, and the sand will look like any other sand. How long it takes for this natural occurrence to 'run out' is dependent upon the amount that is in the land from which it comes.


What do I do if my bearded dragons Legs start turning green?

If he's on sand that could be the reason, if he's not on sand take him to a vet