Rocks are simply all solid constitution of the earth surface. It includes fore-sure the same ways all minerals that could fills veins.

This sounds good for me ,

Do you have any reference stating that?

I'm afraid not! these are basic fundamentals, you found them in courses but I have no informations about references stating this.

Yeah. I think the same . But some other scientists, professors , say that a vein is not rock. So, a reference will solve it.

Thanks anyway

A vein a particular space form for a rock, which can be different. Thus, a "vein" is not a rock.

Thanks.

What about the material within that shape?

I mean "dike" is not a rock, but the gabro of which is made of , it is indeed a rock

First of all, a vein is a structure. A rock is a material that consists of several minerals, so the veinmaterial, is a rock when it consists of several minerals?

I do agree with you two.

The vein, is a name given to an element, structure or shape in the rock

The material inside it are made of only one or many minerals, that are originated from an a aqueous solution.

So, yes .. for me the material inside a vein is also a rock.

My full problem is writting my thesis.

I am defining "rock units" or "rock facies" in the internal structure of fault rocks . An important element in the faults I am studying are large fragments of quartz veins and not deformed veins adyacent to fault gouge.

So I named a rock facie: "Quartz Vein" but I have been objected becoouse vein is not a rock..

Erik to me you should simply define the rock (i.e. host rock) then you will have different characteristics/domains developed from the same protolith. I agree with those people who did not like “Quartz vein” as a rock facies, not because is wrong but because it’s confusing for the reader. If you really want to do that call it quartz vein-rich "rock name". If I remember you had also many types of alterations, thus you should define from which protolith they came from and then describe how they look like in different facies or domains.

Mm, you could call it "vein quartz" :)

Yes Nino you remember very good. I also have zones of altered protolith, in these cases I can use the protolth rock name following the alteration minerals. "Clay rich porphirytic granodiorite" or simply "argilitic granodioritic porphiry".

But the material or "rock " that I want to refer with the term is the mineral agregate forming the vein (quartz in its majority) not the protolith with many veins.

This material can keep the vein shape but also can be very fragmented forming breccias, (and this fragments are still the same material)

Thanks Tine!

"Vein quartz" seems to be correct. Sounds strange but is actually closer to what O am trying to say. "Quartz that are/ or were distributed in veins"

Thanks and cheers both

So , I can conclude that the mineral aggregates within veins fit in the defintion of rock (No References) , but there are not rock names for them except by the mineral itself.

Now is more clear what you wanted to say. You could write: the quartz fragments contained in the brecciated rock came from the quartz-filled veins documented in that facies. Anyway, as long as you precisely state what you mean with the name you'll pick that's fair enough.

That is too long for a rock facie or unit name.

It would be useful if someone makes a a vein material nomentcalure.

Then they will be treated properly like the rocks they are.

Check this out http://dx.doi.org/10.1016/j.jsg.2012.07.005