Malachite Chrysocolla slab 4.0 oz (120 grams)
Malawi Blue Chalcedony 1.4 oz cabochon or facet, 2 pieces tumbled lapidary rough.
Malawi Blue Chalcedony lapidary lightly tumbled rough 2.3 oz dendritic plate
Malawi Blue Chalcedony lapidary tumbled rough 4.2 oz cabochon or facet
Malawi Blue Chalcedony tumbled rough 1.8 oz cabochon or facet
Maury Mountain Moss Agate Lapidary slab 18 oz (510 grams)
Maury Mountain Moss Agate Lapidary slab weighing 19 oz (545 grams) .
Maury Mountain Moss Agate Lapidary slab weighing 11.2 oz (320 grams) .
Maury Mountain Moss Agate Lapidary slab weighing 12.0 oz (340 grams).
Maury Mountain Moss Agate Lapidary slab weighing 13.2 oz (375 grams).
Maury Mountain Moss Agate Lapidary slab weighing 17.8 oz (510 grams) .
Maury Mountain Moss Agate Slab 6.8 oz (190 grams)
Medicine Bow Plume Agate lapidary slab 7.8 oz (220 grams)
Montana Dryhead agate 0.8 oz lapidary heel slab (20 grams)
Moroccan Amethyst lapidary cabochon slab 2.4 oz (70 grams)
Moroccan Jasper Agate 2.5lb lapidary slab (1162 grams)
Moroccan Jasper Agate 3.2lb lapidary slab (1463 grams)
Moroccan Jasper Agate lapidary slab 12.5 oz (355 grams)
Moroccan Jasper Agate lapidary slab 16.4 oz (465 grams)
