Clocktower is proud to share its range of rare and exquisite minerals. These include pseudo malachite, usually coated with chrysocolla and quartz, dioptase, polished and tumbled malachite, cobalto calcite and malachite collections and specimens. Our stones come in small, medium and large. Each stone is carefully picked. Each stone has its own life. The selection process is a very important process. It is never rushed. This is one of the factors that sets us apart. We have a relationship with each stone. We feel humbled to share some of nature’s rare, beautiful stones.