Which element, found in both biotite mica and muscovite mica, makes up the greatest percent by volume of Earth's crust?

Which two properties are most useful in distinguishing between galena and halite?

Which mineral is commonly mined as a source of the element lead (Pb)?

Which chemical formula represents the composition of a mineral that usually exhibits fracture, not cleavage?

The crystal shape and type of cleavage of these two minerals are determined mainly by minerals'

Which physical property can be observed in this photograph?

Moh's scale arranges minerals according to their relative

The diagram below shows the results of one test for mineral identification. Which mineral property is being tested?

Which mineral bubbles when acid is placed on it?

A human fingernail has a hardness of approximately 2.5. Which two minerals are softer than a human fingernail?

Which sequence correctly matches each test, A, B, and C, with the mineral property tested?

Which mineral is white or colorless, has a hardness of 2.5, and splits with cubic cleavage

The mineral wollastonite has a hardness of 4.5 to 5. Which New York State mineral could easily scratch wollastonite?

What is a common use for the mineral that is mined at the southern end of the two largest Finger Lakes?

Which of the following elements is not found in Plagioclase Feldspar?

Which mineral was tested?