Question

what is gypsum , coral and glass sand

Answer 1

Dear student

Gypsum

Gypsumis a rock like mineral commonly found in the earth’s crust, extracted, processed and used by Man in construction etc.

Gypsum can also:

• Be added to some bread and dough mixes as a Calcium source and baking aid.
• Be used as a filler and fire retardant in plastic products.
• Be used in Portland cement and special cement products for set and expansion control.
• Be a source of Calcium and Sulphate Sulphur for plant growth.
• Be used as a modelling material for tooth restorations.
• Be an ingredient in many patching compounds.
• Be used with glass to fabricate large, lightweight architectural decorations.
• Be used as a mould material to fabricate custom body parts for trucks and automobiles.
• Be an aid in juice extraction of some fruits and vegetables

Gypsum is a sedimentary mineral. It is found in layers that were formed under salt water millions of years ago. The water evaporated and left the mineral. Gypsum is composed of calcium sulfate (CaSO4) and water (H2O), i.e. Calcium Sulphate Dihydrate (CaSO4.2H2O).

Coral sand

Coral sand is a collection of sand of particles originating in tropical and sub-tropical marine environments from bioerosion of limestone skeletal material of marine organisms. One example of this process is that of parrot fishes which bite off pieces of coral, digest the living tissue, and excrete the inorganic component as silt and sand. However, the term "coral" in coral sand is used loosely in this sense to mean limestone of recent biological origin; corals are not the dominant contributors of sand particles to most such deposits. Rather, remnant skeletal fragments of foraminifera, calcareous algae, molluscs, and crustaceans can predominate. Because it is composed of limestone, coral sand is acid-soluble.

Glass Sand

Glass Sand A special type of sand that is suitable for glass making because of its high silica content, and its low content of iron oxide, chromium, cobalt and other colourants. The process of transportation and sedimentation of sand followed by concentration of quartz in significant volume along with the removal of other minerals leads to the accumulation of glass sand


Hope this help you.