Polishing Amber in a Vibratory Tumbler

After successfully tumbling my amber with Silica carbide 220 up to Al-oxide X3, I still lacked a solution for the final polish.
Here are my the various results ending with Vibra-Dry 25000 which gave me the finish I was looking for

• #howto_style
• #polera_brnsten
• #rav
• #vibra_dry