A geologist analyzes 72 mineral samples, organizing them into 8 equally sized groups by formation type. If 3 of those groups represent metamorphic zones and each sample within them is scanned using X-ray diffraction, a clear pathway emerges for calculating how many samples undergo this analytical technique. This routine in geological research supports precise classification and interpretation of Earthโ€™s subsurface processes. With structured grouping and targeted sample processing, studying mineral behavior becomes both systematic and scientifically meaningful.

This setup reflects a growing trend in geoscience: using detailed sample analysis to understand formation characteristics, mineral composition, and geological history. X-ray diffraction is a standard method that reveals atomic structure patterns, helping identify minerals and assess sample integrity. By focusing only on samples from metamorphic zonesโ€”groups known for complex mineral reassembly under heat and pressureโ€”the approach balances precision with purpose.

To calculate the number of samples analyzed, begin by determining the size of each group. With 72 total samples divided into 8 equal parts:
72 รท 8 = 9 samples per group.
Each sample in the 3 metamorphic groups undergoes analysis:
3 groups ร— 9 samples = 27 samples analyzed by X-ray diffraction.
This focused methodology maintains scientific rigor while supporting broader discoveries in mineral classification and earth resource evaluation.

Understanding the Context

Is X-ray diffraction widely adopted in modern geological labs? Yes. Its role in non-destructive mineral identification has made it indispensable for research institutions, mining companies, and academic programs. This technique enables rapid, reliable data collection essential for