Peridot Polishing Survey Results

Editor's Note: Some years ago, the International Gem Society (IGS) conducted a survey of members' polishing techniques. Here, you'll find the results for peridot polishing. Whether you're just starting to learn the art of gem cutting or just looking for a new way to tackle a problematic gem material, we hope these results provide some useful suggestions.

Peridot varieties can vary in hardness. If you're polishing forsterite (7), consult the survey results for polishing gems with 7-8 hardness. For fayalite (6.5) and tephroite (6), take a look at the results for polishing gems with 4-6 hardness.

For more information about the survey or to find results for more gemstones, click here.

Peridot Polishing Techniques

Laptype	Polish	Lubrication	Votes
Tin	Linde A/Cerium	water	20
Tin	50-100k diamond	oil or water	10
Ultra Lap	Aluminum Oxide	water	6
BATT	Linde A/Cerium	water	5
Last Lap	50k diamond	vinegar/water	3
Lucite	50-100k diamond	DiaLube or water	3
BATT	50-100k diamond	oil	3
Ceramic	100-200k diamond	none	3
Ceramic	50k diamond	oil	3
Lucite	Cerium Oxide	water	2
Copper	Diamond paste	Crystalube	2
Zinc	50k diamond	oil	2
Last Lap	Aluminum Oxide	water	2
Magic Wax	Linde

...

International Gem Society

View All Articles