I'm very, very, confused right now.

You see, it all started when I broke my art kaplan cello rosin. Then I got this supposedly cello rosin http://ecx.images-amazon.com/images/I/4173TS2NRYL._SL160_AA160_.jpg from Paganini. It stuck me as too light. (My cello teacher earlier told me that the ones that come with the bow are too light-colored, and I need a dark one... and this was only a teeny bit darker) It worked, but my cello teacher said my bow didn't have enough rosin quite a few times (because I use it up practicing... or because the rosin doesn't work??? I put it quite often)

Then when I got my violin and wanted to buy rosin, then I found out the Paganini rosin is for violin (and/or for cello????)Furthermore, my violin teacher said I'm not supposed to use cello rosin for my violin, and I'm quite sure I'm not supposed to, and I'm very confused and stuck between two arguments:

1) Cello and Violin should use different rosins, because for the plain fact they are different instruments. The rosins and different, the bows are different (thicker, and thinner) and the strings require different rosins. Besides, cello rosins are a way different. They are darker, right?

2) Cello and Violins are in the same family, use the same basic bow, and the hairs are the same? Why can't we just use the same rosin for both? Shouldn't it work? The hairs are the same, right? The strings are made of the same material? Why not save money?

SO??? I really confused and need help fast!

I'd really appreciate it,

Thanks.

I don't think the color, dark or light, can determine which instrument the rosin is for. As a violin player, I can either buy light rosin or dark rosin, both for violin. It depends on the player for which they prefer in terms of that.

I don't know for sure, but I'd assume you wouldn't to mix them up because of the difference of thickness of the bows and the strings are also much different for the two instruments. I don't know that as a fact, but i think that makes a lot of sense.

I asked my cello teacher this same question some time ago, and his response was that because of the strings thickness, violin rosin doesn't work as well as cello rosin on a cello. If you compare violin rosin to bass rosin, and look at the difference between the two, you will see that the bass rosin is much heavier and glue like. The same goes for the cello. If the violin rosin is applied to a cello bow, it won't grip as much sting as it would if it had cello rosin on it.