Canon 6D's RAW files are somewhere in 23 to 28 MB range (24-26 on average), depending on what settings (particularly ISO) you have and what theme you photograph.

Note: The size variance is due of Canon's CR2 has loseless compression inside as well as some JPG thumbnails/previews of the actual RAW data and also because, as I said, some settings (for example high ISOs) have a lower compression ratio (due of noise introduced).

So, let's say that we have on average 25 MB/file. On a 32 GB raw will fit 32*1024/25 ~ 1310 files.

1st, try to (re)format the card. Sometimes, the proprietary data put on card by one camera will cause problems on another cameras (Hasselblad cameras/PhaseOne backs are known to do this). See which is the empty space in GB on the card in the camera and in a computer. If the capacity is way off from 32 GB (expect some minimal difference for filesystem structures) then use the Disk Manager (on Windows) or an analogous tool on your operating system to see why the partition(s) is so small. If you will not see any 'unused space' or another partition which would justify the small capacity of the main partition then you have a fake. Return the product.