What’s in the picture?
Most of the features in a Manganese Dendrite picture have a name. And here they are:
A Scene:

Scenes on a Manganese Dendrite can look like natural scenery, or something you would hallucinate. Scenes are good. Especially in a Double. They don’t always have to make sense, but it has to look interesting and well put together.




Tree:
A Tree is a feature that Looks like a tree. Branching out from one end. Not to be confused with Flowers, which is basically a tree with a flower on top, or a Ghost Flower, which has no stem.



Flower:
Flowers look like flowers. But there are many kinds of flowers as well



Forest:
A Forest refers to any grouping of trees (not flowers)


Field:
A Field is any grouping of Flowers.


Muti-Sided Field or Forest:
When the flowers or trees grow Up from different sides.



Fat Trees are known as Ferns:



Frame:
A Frame is a frame. Goes around 3 or 4 sides of a rock.

Seam:
A Seam is a line going through a Manganese Dendrite, usually on a fault line, that can have features growing out of it.


Archway:
Archways take many forms, but the features curve around a center.

Abstract:
Your guess is as good as ours. Doesn’t appear completely random, but has asthetic value.

Reflection:
Similar features on the top and bottom. Not to be confused with a double, wich would be a mirror reflection, but on two separate rocks.
Hugging Bears:
Very rare. 2 bears hugging.

Starburst:
Kind of like a large flower with no stem.

Archway with Window:
Archway with an open center.

FSM
These definitions are from The International Association of Manganese Dendritologist. (IAMgD)