Lortone Tin Oxide Polishing Medium for Rotary Tumblers and Lapping – 5lb 591-039 (19031)
Tin Oxide rock tumbler polish is used for STEP 4 of the rock tumbling process. It was a
favorite polishes used in the early days of rock tumbling. Lots of people still use it today.
It does a great job on all varieties of quartz, jasper and agate. It works exceptionally well
on volcanic glass such as obsidian and on man-made glasses. Many people also use tin
oxide when polishing soft materials such as calcite, rhodochrosite and malachite.