If you dont have the stones in hand it'll be difficult to identify them. That pictures a bit better, overall they look like smoky quartz on the top two and down the left side, save for the brighter red/orange ones. The geometry is muddy though as they look somewhat tumbled or water worn~ the bright ones remind me of zircon. A hardness test is needed and better shots. Could be some citrine in there or just very light smoky quartz. My opinion.