A feather cluster is typically called a plume or a tuft. Feathers within a cluster may also be referred to as a crest or a rosette, depending on their arrangement.
That is called a globular cluster.
A natural cluster of wool fibers is called a fleece.
A group of diamond is called a cluster
It can be called a star cluster, an open cluster or an asterism.
A small cluster of water forms can be called droplets.
The odd color feather on the arrow is called the "index feather."
A feather has a main shaft, called the rachis.
It is believed to be a ostrich feather; but it is mostly now called the Ma'at feather.
That is called a globular cluster.
Cluster ~Dodge
A natural cluster of wool fibers is called a fleece.
A flat topped flower cluster is called a corymb or a cyme.
The feather is called a beard
A single cluster is called a bulb.It is the root part of the plant.
A group of Spiders is called a cluster or clutter. Spiders belong to the group of animals called arachnids.
A group of diamond is called a cluster
A chain or cluster of islands is called an archipelago.