EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing. To request an improvement, please leave a comment on the page.OL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing. To request an improvement, please leave a comment on the page.
Glass is made by melting sand,soda ash,lime,some recycled glass in a furnance at 1900 degree celsius in a liquid state it is drawn on molten lead to make the glass surface flaâ¦t and allowed to cool for 36 hours before packing.(the green colour in th glass appears due the iron content in it)
Lava. Category: Lava is made up of crystals, volcanic glass, and bubbles (volcanic gases). As magma gets closer to the surface and cools, it begins to crystallize minerals like olivine and form bubbles of volcanic gases. When lava erupts it is made up of a slush of crystals, liquid, and bubbles. The liquid freezes to form volcanic glass. Chemically lava is made of the elements silicon, oxygen, aluminum, iron, magnesium, calcium, sodium, potassium, phosphorus, and titanium (plus other elements in very small concentrations.