Chamomile, wild (Ormenis multicaulis) from Aura Cacia
Minty and oily with a quality that is a bit like the aromatic grasses citronella or lemongrass. There is also an "herbal" edge which makes it seem medicinal, but it is not very strong. The overall effect is very grassy or hay-like. The mintyness is sweet and mild, very much like spearmint, and is reminiscent of chewing gum. I can understand why this herb would be blended with mint to make tea.
Chamomile, Moroccan blue, aka Blue Tansy (Tanacetum annuum) from Simplers
Minty, aromatic, medicinal, it has some similarities to sage and rosemary. There is an interesting sweet aspect to this sample that is difficult to pin down. The mint aspect is mellow and rounded, like peppermint. The overall effect is woody, aromatic, and slightly resinous, perhaps like tree gums.
Edit to add:
After sitting here on the cotton pad for more than 12 hours, the Wild Chamomile has really changed significantly, broken down to mostly a sweet and slightly minty dried hay smell. The Moroccan Blue Chamomile has retained its composure quite well. The medicinal edge has softened significantly, and it is sweet and minty. I still do not have a handle yet on what this sweetness could be. However, when I first smelled the two, the Wild Chamomile smelled more edible. Now after complete drydown, the Moroccan Blue Chamomile seems more edible. It is a savory sweet, a bit nutty or meaty perhaps.