Computer · Civil Engineering Materials

Which of the following statements regarding building stone minerals is INCORRECT?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

1All of the above statements are correct.
2A stone containing a large percentage of quartz is very soft.✓
3Feldspar is a silicate of aluminium with varying amounts of potash, soda, or lime.
4Quartz has a greasy luster.

Correct answer

A stone containing a large percentage of quartz is very soft.

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