# Can I make a greek letter extra-bold in math mode? [duplicate]

Possible Duplicate:
How can I get bold math symbols?

I would like to distinguish between a vector of betas and the individual betas and I want to use bold symbol, rather than an error, to indicate the vector.

However, I see from How can I get bold math symbols? pointed out by @Werner that there is no difference between \beta and \mathbf{beta}.

However, even \bm{beta} could use a little fattening-up, in my opinion, and the \hm from the bm package. Can I make the beta's extra bold? My current solution is just to use "B" instead.

for comparison, here is the output of

\documentclass[12pt]{article}
\usepackage{amssymb}
\usepackage{bm}
\begin{document}
$\beta \mathbf{\beta} \bm{\beta} \hm{\beta} \bm{\beta\mkern-11mu\beta}$
\end{document}

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