StoneRoad2013's photos with the keyword: Manganeze Hydroxide dendrite

Spotted in the paved area around the facilities at Horsey Wind Pump. This "fossil frond" , aka Manganeze Hydroxide dendrite is somewhat larger than the example I found on a paviour last year.

What looks like a fossil frond of something, probably seaweed, as this is in, I think limestone. Spotted in a garden. [sorry, but I would not have used that paviour in a walkway zone] E2A - it's not actually a fossil, I've been misled by the shape ... It is Manganese Hydroxide dendrite.