Here is a link to a page about organic fertilizers - read down to find where it covers bone meal and dried blood: http://www.dummies.com/how-to/content/fertilizing-your-organic-garden.html

I would think it would contain considerable calcium, as bone is normally full of it. Also, any fertilizer you buy should have some nutrient content posted on the package. If it only has NPK, sometimes the product's website will have more detailed info, or you can email them directly. Hopefully lisanti's link above answered the question though.

The usual candidates include egg shells, burnt wood ass, and the urine from those whom the diet consisted mainly of red meat (their calcium leach into their urine)

That link helps a lot thanks. It confirms bone has 22% calcium so hopefully my jalepenos will recover soon :)