Combine the brown rice flour, garbanzo bean flour, baking powder, baking soda and salt in a large bowl.
In the bowl of a standing mixer fitted with the paddle attachment, combine the coconut oil and organic whole cane sugar until well mixed.
With the mixer on low speed, add the flour mixture and rice milk alternately, a little at a time, until well mixed, about 3 minutes.
Chill the dough for at least 3 hours or overnight.
Preheat the oven to 375° F.
Dust your counter liberally with brown rice flour.
Knead the orange chocolate into the chilled dough and pat the dough into a 2-inch thick disc. Cut the disc into 8 wedges.
Place the wedges onto a greased or parchment-line baking sheet, spaced evenly apart. Bake until scones are golden brown and firm to the touch, about 30 minutes.