Marble S Protolith

This rock sample is not marble it is quartzite metamorphosed sandstone.

Marble s protolith.

In its pure form marble is a white stone with a crystalline and sugary appearance consisting of calcium carbonate caco 3. The protolith of marble was limestone or dolomite. Marble is commonly used for sculpture and as a building material. Gray slate is common but the rock occurs in a variety of colors including brown purple green and blue.

This allows it to be economically mined on a large scale with some mines and quarries producing millions of tons per year. Marble occurs in large deposits that can be hundreds of feet thick and geographically extensive. Jerry has a total of 23 marbles the marbles are either blue or green he has three more blue marbles than green marbles how many marbles does he. Width of sample 14 cm.

Crushed stone is used as an aggregate in highways railroad beds building foundations and other types of construction. Usually marble contains other minerals including quartz graphite pyrite and iron oxides. Marble is a metamorphic rock composed of recrystallized carbonate minerals most commonly calcite or dolomite marble is typically not foliated although there are exceptions in geology the term marble refers to metamorphosed limestone but its use in stonemasonry more broadly encompasses unmetamorphosed limestone. Marble may be snow white either if the protolith was very pure or if the rock has been bleached by a water rich fluid.

These minerals can give marble a pink brown gray green or variegated coloration.