Snowflake Obsidian
The white fluffy stuff in the air is called "pollen."
One type of obsidian is snowflake obsidian, which is black with white mineral inclusions that resemble snowflakes.
The white stuff found in the middle of an apple is called the core.
White caps!
its streak is white.
obsidian
The white stuff is called pus
That's called semen.
the plup
I think it's called "Foam"
The white stuff on bread that indicates the presence of mold is called mycelium.
The whitefly could be the cause of the white, sticky stuff on the kumquat leaves. The white substance is called flocculent.