Question

Question 2 Which of the following minerals typically have dark colors to their appearance (e.g. black, brown) Check all that apply O Quartz Biotite Plagioclase feldspar Pyroxene Potassium feldspar Olivine Muscovite Amphibole

Answer 1

Answer:

Biotite

pyroxene  

amphiboles

Explanation:

From the given option of the question , the minerals with dark color are as follows -

amphiboles

pyroxene  

Biotite

Biotite - This is a mineral of mica , and is deep block or may be brownish in color , the hardness value is 2.5 to 3 .

pyroxene  - It is the nineral found in metamorphic and  igneous rocks .

Amphiboles - is green to black in color .