Quartz is very resistant to both chemicals and heat. It is therefore often used as a foundry sand. With a melting temperature higher than most metals it can be used for the molds and cores of common foundry work. Refractory brick are often made of quartz sand because of its high heat resistance.Quartz sand is also used as a flux in the smelting of metals.he high hardness of quartz, seven on the Mohs Scale, makes it harder than most other natural substances. As such it is an excellent abrasive material. Quartz sands and finely ground silica sand are used for sand blasting, scouring cleansers, grinding media, and grit for sanding and sawing.
ANSWER What kind of flour do you mean? 1 US teaspoon contains 2.5 g wheat flour, 3.5 g potato flour, 3.2 g corn flour.
The density of flour is 125 g per cup, or 528 grams per liter. If you need 100 g of flour, that would be 0.8 cups, or about 3/4 cup + a little less than a tablespoon.If you want it in liters, it would be 0.189 liters, or 189 mL. Source(s): http://wiki.answers.com/Q/What_is_the_de...very ingredient has a different density, so these conversions are kinda tricky. For example: 500 grams of mini marshmallows = 10 cups 500 grams of flour = 5 cups 500 grams of sugar = 2.5 cups However, the website doesn't say if this was sifted flour or not.