Brandon has confirmed that it is possible to burn a hemalurgic spike (though it would be a painful process). However, he's implied that it wouldn't grant any extra power, as the user is not keyed to the spiritual identity of the powers granted by the spike-- essentially, the power is from another person. Would it be viable, however, to have the hemalurgic subject (whom the power is being taken from) fill an aluminum metalmind as they are being spiked, therby divesting the spike of any identity? Would that allow a hemalurgist to fully access the investiture contained within the spike? What kind of effects could be expected (If any can even be interpreted at this time) from burning an unkeyed spike as such? Sorry if that doesn't make much sense, I'm just curious as to what thoughts others might have on this subject.