iron
Pennsylvania's most important mineral is coal. Second is oil.
water, sun and oxygen
calcium which is found in milk and most other dairy products.
The most important mineral of chromium is chromite.
It is important because silicate in feldspar help feldspar not to chip or break as easily. It helps it keeps it shape and the form. Silicate makes the color the color feldspar is when you look at it. Hope this helps
It is gold.
Pennsylvania's most important mineral is coal. Second is oil.
Carbonates are the second most important mineral group.
mineral oil
Calcium is the most important mineral for healthy bones, especially for women.
Gravel
Calcium
water
California's state mineral is gold.
I'm not sure, but it's most important source is the mineral rasorite found in the Mojave Desert in California, so it could have been.
Gold
Silicates