Question

Which is never found in granites?

Answer 1

If granite type rock has crystals that grow larger than a large pebble (roughly 3 cm or about 1 inch across) then it is called a pegmatite. The minerals that are found in granite are primarily quartz, plagioclase feldspars, potassium or K-feldspars, hornblende and micas.

Answer 2

Answer:

• The formation of granite is mainly with silicon dioxide, where about 14-15 percent of aluminium oxide, silicon dioxide, diminishing quantities of the oxides of potassium, sodium, calcium, iron and magnesium.
• No free metal and ore present in granite but it is possible to find metals in its surroundings.
• Granite is generally very hard and mostly the colour of granite is pink, white and grey but it depends in mineralogy.
• Granite is used in decorative purpose as well as for electronic goods.