This is best to be treated as it's own profession, primarily because it's a good idea to have all materials used in crafting to be on their own page so that they can be referenced by all other crafting. This page will also list off and explain all the various ways one can use in order to gain these specific materials.

Acquiring Materials

This section will quickly cover how one will acquire the materials on this page. This section will list off the various ways one can find the materials they'd want to acquire.

Reagents

Reagents are primarily used in alchemy, and come in a variety of forms; they can random herbs that grow within the various regions of the world, some are mushrooms that can be acquired within the caverns of the world, some are fish with can be caught with fishing equipment, and some can be outright harvested by special monsters. Regardless of it's source or form, what matters in the category it falls under, as said category determines how the reagent will be used.

The categories that reagents can be divided into are curative, poisonous, and reactive. Along with these categories, they are also dived into tiers of 1 to 5, with the lowest tier being the cheapest and easiest to acquire, while the highest tier is extremely hard to acquire and quite expensive.

Reagents cannot be salvaged once they are mixed into an item (potions, essences, inks). Reagents also generally weight about 0.2 pounds.

Magical Ink

Ink is a material that has a wide variety of uses, including for anyone who seeks to write down notes or messages, Magical Ink is a necessity for writing and holding arcane writings unto special parchments. One can synthesize magical ink from the reagents one can acquire, though the categories used do not matter. Only the tiers do.

Magical Ink is not something one can simply find or harvest in the world, but it can be looted off of certain monsters, or found in certain areas. One could argue that certain monsters - such as demons or dragons - could have their blood harvested and used as ink. Like all materials, inks can also be purchased, generally off of alchemists and scribes.

Magical Inks, like Reagents, cannot be salvaged once they are used in the writings. Magical Inks also generally weight about 0.1 pounds.

Essence

While Reagents are special substances that hold magical prowess, essences are the purest form of that magical power. They represent a concentration of the purest form of the magic it represents.

Essences come in three types: Arcane, Divine, and Primal. Like Reagents, they also come in 5 different tiers of power and rarity.

They can be acquired by a wide range of methods which will be delved into later on. These methods can range from disenchanting magic items, "creating" it as a specific class, or by trading with, or stealing/looting it from, someone who has already done the hard work of "creating" the essence in question.

While all professions will make some degree of use out of the essences or varying purposes, Enchanters will make the most use out of them, as essences are heavily used in the enchanting of various items.

Essences, generally, weight about 1 pound.

Ingots

Ingots are refined metal that is used to craft a wide variety of items. It's safe to assume that an ingot contains the purest form of the metal it's labelled as. Normal Ingots are typically made of Steel. While there are cheaper ingots (such as Iron); pure Iron Ingots cannot be used in weapons and armor, but can be used it various other items, which can make the item cheaper. However, there are other materials, such as Mithril and Adamantine, which can be not only be used for weapons and armor, but infused that weapon/armor with a special property. However, using these materials make them harder to work with and, thus, cost more.

Ingots can be assumed to weigh 2 pounds each.

Hides & Leathers

Hides, scales, and carapaces all tend to be harvested from monsters. Leather is a product of hides that can be processed from what it is harvested from the monster.

The GM determines if a monster provides hide, scale, or carapace. Hides do not come in different sizes, rather larger creatures simply provide more hides, and monsters that are not large enough to produce one hide provide only hide scraps.

Scales are likewise abstracted: each increment is simply an arbitrary unit of scales that the unit of scales covers. Scales can be much larger or small from different-sized creatures.

The system does not attempt to say how many scales a creature provides or how many literal actual scales makes up scalemail, but rather provides a number that is then consistently used.

Creatures are harvested using a Survival check, with its DC listed below. If the DC check is failed, the harvest does not fail entirely, but instead they get 1d4 hide scrapes in place of any hides, carapaces of one size smaller, and half as many scales. Hide and leather materials can be assumed to be about 2 pounds each.

Parts

The term “parts” is used to refer to gears, wires, springs, windy bits, screws, nails, and doodads. Parts can be either found or salvaged or forged from metal scraps (or even straight from ingots by a Blacksmith for those that really want to be industrial about it). The exact nature of each item making up this collection is left abstracted.

In addition, metal scraps are collections of salvaged material that generally fall into the category of things “too small to track” which can then be used for the creations of tinkerers. In addition to all of this, occasionally tinkers will use ingots... particularly ones of tin (which is their namesake, after all).

Like other crafting branches, there are also named components for more iconic pieces of gear - the stock of a crossbow, for example, or other items. The cost for these items can be found on the common component table, and are generally minor.

Lastly, Tinkerers use essences when constructing things that push beyond the mundane principles of plausibility, crafting magical properties into their inventions.

Wood

Commonly available in its lowest quality (firewood), higher quality woods are often found in rather exotic locations. Wooden branches (including wood scraps) are assumed to be of a useful wood that can be worked, while firewood covers everything else, with more useful woods falling into categories such as “quality branches” or rarer options. Wood scraps are assumed to be scraps of common branch quality wood, and consequently can’t be salvaged from firewood.

Wooden branches can be assumed to weigh 2 pounds each.

Other

Uh... there's some other crafting materials that don't fall under the other categories. As such, I want to list them out in case someone wants to go out and buy them, or hope some poor fool has them on his corpse.