Silicate minerals are always harder than non-silicate minerals.
Non-silicate minerals never contain oxygen in their chemical formula.
Silicate minerals contain silicon and oxygen as major elements, while non-silicate minerals do not always contain both.
Non-silicate minerals are always formed through biological processes.
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The Correct Option isC
Solution and Explanation
Silicate minerals are characterized by the presence of both silicon and oxygen in their structure, forming a silicate tetrahedron. Non-silicate minerals may or may not contain these elements.