Planet Classification

The Mohs system for Planetary Classification was an attempt to create a series of classifications for the planets, races, and cultures that make up our galaxy. While there will always be anomalies, the Mohs scales have been widely recognised as the best method available, and are now accepted as the default standard.

Planet Type Description
Ice Generally inhospitable, ice worlds can actually be tremendous sources of minerals and other raw materials. Highly regarded by the scientific community, ice worlds can reveal much about the formation of themselves and the other planets in their system.
Volcanic Whether through natural or artificial means, volcanic worlds generally live up to their fiery classification. Although quieter planets can be inhabited, most are considered the domain of artificial or non-humanoid life forms. Their natural resources can be immense but the danger involved in exploiting them makes them unlikely travel targets.
Oceanic Any world which has more than 75% water coverage is considered to be an oceanic world and the inhabited ones are generally in far better condition than their land version counterparts. Usually teeming with life.
Swamp Existing between oceanic and Earth class planets, swamp worlds are difficult to colonise. The land masses lack the ability to support colonisation and the indigenous life can wreck havoc. Generally rich in natural (if unrefined) products.
Radiation Worlds where the background radiation count exceeds the galactic standard of 240rpc. Totally unsuitable for most life forms, radiation worlds are usually very high in ores and (obviously) radioactive materials.
Gaseous Typically gas giants, gaseous worlds offer a wide range of gas products but extraction of such items is difficult due to the lack of solid ground. Often covered by raging storms, gaseous planets are home to several species and any trader able to strike up a partnership with such a species can reap great financial rewards.
Desert Just as any world with more than 75% water coverage is classed as Oceanic, any world with 75% or more desert coverage is classed as desert. Typically arid, dry affairs, desert worlds can have much mineral wealth and anyone capable of establishing a successful settlement can literally mine a fortune. Low in water and natural produce, desert worlds can often find themselves held hostage by unscrupulous traders.
Earth Named after the legendary Sol planet (that destroyed itself following an abandonment of anti-emission laws), Earth type planets have a delicate mix of land, desert, ocean, and swamp. Having deposits of most minerals, ores, etc. Earth type planets are not overly abundant in anything and prices tend to remain average. Unspoiled Earth type planets typically end us as leisure resorts.
Forest With great forests and vegetation plains, forest worlds can produce a huge volume of plant and agricultural material. Generally regarded as 'backwoods' by most civilisations, forest worlds make ideal farming planets. Typically benign, traders in search of a combat free existence often attempt colonisation after their piloting days are over.