It was recently pointed out to me that there are 4 tiers of items: Common, Uncommon, Rare, and Very Rare. So to keep an eye on the fluxing tiers if they do (and to get input as well) I'm just gonna post what I've things ranked as, and what I'm selling them for. (EACH ITEM IS PRICED PER ITEM)

Common:

Adamantine- 500

Laminaria-500

Uncommon:

Amethyst- 1000

Black Oil- 100

Granite-100

Lazulite- 1000

Magnetite- 1000

Marble- 100

Pure Snow- 90 to 100

Quartz- 100

Ruby- 1000

Sapphire- 1000

Topaz- 1000

Rare:

Magic Bomb- No price as of yet

Very Rare:

Biogas Bubble- 1500

These prices are made based off what I've been seeing others sell them for OR what I've come across to sell so far. Please let me know if you have any additions or such.