Class F geocrystalline planet

For other uses, see class F.

class F silicate
Classification:	silicate
Age:	less than 10 billion years
Surface:	silicate, some metals
Atmosphere:	oxidizing
Lifeforms:	primitive simple organisms

Class F silicate, in planetary classification, is a type of planet. These rocky, metallic worlds have also been classified as class G geocrystalline planets on other scales, and are possessed of an oxidizing atmosphere. Lifeforms have a difficult time taking hold on these dry worlds. (ST references: Star Trek Maps, The Worlds of the Federation)

The source reference only called this a "class F planet", but another source calls planets of a different type by the same name, leading to the term "silicate" to be used as a descriptor to disambiguate the two terms. In the conflicted source, ST reference: Star Charts, planets similar to these worlds are called "class G geocrystalline planets".

Planets of this type

• Delta Vega I

Appendices

Connections

Planetary classification
numeric:	class 9 ("Q'tahL"-class)	alphabetical:	class A class A geothermal class A gas giant
class B class B geomorteus class B gas giant	class C class C geoinactive class C reducing	class D	class E
class F class F geometallic class F geocrystalline	class G class G geocrystalline class G desert	class H class H desert class H geothermal	class I class I gas supergiant ("Q'tahL"-class) class I metallic/silicate
class J class J gas giant class J moon	class K class K silicate/adaptable class K transjovian	class L	class M ("Minshara"-class) class MZ
class N class N reducing class N pelagic	class O	class P	class Q
class R	class S	class T	class Y ("Demon"-class)

References

• ST reference: Star Trek Maps