I work with cutting, grinding, and polishing meteorites, and I’d like to ask about your experiences with achieving a true mirror finish on meteorite surfaces.
So far, I’ve found that stony meteorites, particularly chondrites, are the most challenging materials for me to polish successfully. Interestingly, the best results I’ve achieved have come from using a beechwood polishing disc with a small amount of aluminium oxide (alumina). This combination seems to produce a better finish than some of the other polishing methods I’ve tried.
However, I haven’t experimented much with other types of wood, and I’m curious whether the hardness, grain, or structure of different woods might influence the final polishing result.
I’d be very interested to hear about your experiences:
- What polishing media and compounds do you use to achieve a mirror finish on chondrites?
- Have you experimented with wooden polishing discs? If so, which types of wood have worked best for you?
- What is your experience with aluminium oxide compared with other polishing compounds?
- Have you discovered any techniques that consistently produce a high-quality, scratch-free finish while preserving the natural structure of the meteorite?
I believe sharing our experiences and experimenting with different materials and techniques could help all of us achieve better results. If you’ve conducted any tests, I’d be very grateful if you could share your methods, observations, or photographs of the results.
Thank you in advance, and I look forward to exchanging ideas with you all!