I am going on a limb here and say no. I know there will be protest, but hear me out. The force that controls the pendulum comes not from the crystal, but from the subconscious or higher self of the person asking the questions. The pendulum is merely the tool used to translate messages from the subconscious. While the response may not be as pinpoint sharp, the message is still the same. The type of mineral can enhance certain properties to refine the message received but the basic message is still the same. It is the movement of the crystal that is the answer and not the crystal itself.
Master Crystal Healer
"Privacy Statement: To help others learn, we typically post questions like yours to our online database of articles about crystal healing. We only use first names and take care to remove all last names and email addresses. If you prefer that we not post your first name or if you would prefer if we not to post your question at all, please let us know and we will be happy to accommodate your request for privacy."