understanding Miller indices-help please?

Question

I am really new to this stuff! I see that the general form is (hkl). What I don't comprehend is how this relates to this:
A1-0=a=a/h
B2-0=2b=b/k
C2-0=2c=c/l

( note the 1 & 2's next to A,B &C are subscripts)

How does B2 suddenly become 2b and C2 suddenly become 2c?
What does the 0 mean? And what is the purpose of the minus sign?

Answer 1

I always struggled with Miller Indices in mineralogy. I found this site with a Google search that takes a simple straightforward approach one face at a time.

http://www.chem.qmul.ac.uk/surfaces/scc/scat1_1b.htm

Here's some more:

http://www.uwgb.edu/DutchS/symmetry/millerdx.htm

http://www.eas.asu.edu/~schroder/436/Miller%20Indices.pdf

Answer 2

Hey i'm here for the first time. I came across this question and I find the answers really valuable. I hope to offer something back to the community and help others too.

Answer 3

Who cares?