Agate - includes ( 2 ) 1/2 thick in size Super Smooth Pieces ~ 12.3 oz total It is categorized as a mineraloid, which is a rock-like formation created when minerals interact and are exposed to the same environmental pressures as rocks. Agate is mostly formed in igneous rock. They can also form in metamorphic or sedimentary rock, but these agates are extraordinarily rare. ** SEE VIDEO ( IF AVAILABLE ) FOR FULL EFFECTS ** ** WE HAVE MANY BEAUTIFUL MINERALSPECIMENS FROM THE USA AROUND THE GLOBE ** MOST ARE FROM OUR VARIOUS TRIPS ** ** SEE MY STORE ** ** OUR GOAL IS TO MAKE COLLECTING FUN AFFORDABLE FOR ALL WITH GREAT LOW PRICING ** item # 189 Shipping Fees SHIPPING HANDLING SHIPPING YOUR ITEM SHOULD ARRIVE WITHIN 1-5 BUSINESS DAYS FOR DOMESTIC ORDERS. SHIPMENT IS FIRST CLASS MAIL - UNLESS OTHERWISE STATED. LOOK FOR A SHIPPING CONFIRMATION MAIL. ORDERS WILL BE SHIPPED TO ADDRESS ON FILE. RETURNS: FULL 30 DAY RETURN POLICY ~ BUYER PAYS RETURN SHIPPING ~ CONTACT US FOR ANY CONCERNS. SATISFACATION IS TOP PRIORITY