Name That Mineral Club     A to Z Mineral & Rock Shop has thousands of mineral specimens in our warehouse awaiting discovery.   We invite you to join our 'Name That Mineral Club' and help us identify.      Name a mineral, and get store CREDIT, as our thanks!        Drop us an e-mail with your thoughts of what this mineral is.  If we verify that you are correct, we'll send you a $1.00 voucher code that you can use on any future orders .  See rules and please provide your name and mailing address below:*       #1240 Gypsum layer on matrix.   Thanks Steve J. ($1 store credit) #1523 #228a Felspar Crystals on quartz by Bill ($1 store credit)  THANKS! #411 #360 Tremolite by Luke ($1 store credit) THANKS! #71 #478a #256a #598 #227a #171 Orpiment by Diane S ($1 Store credit) THANKS! #167a #234 #326 #324 #279 Unknown Mineral Forum (click on star)                 CONTACT US WITH YOUR THOUGHTS.  Email us the ID # you are referring to and let's chat!     "Thanks helping*" (click on mailbox)  *  We do not sell, or trade, any private info.  Three lucky chances per month per party.  Vouchers have no time limit, and are transferrable to your friend.   We do keep your name registered for verification.