i recently visited the vault and the london museum and took photos of minerals to use for a college project.
however, i didnt take notes of the names and funny enough that is an important factor.
could you please identify these
I am not familiar with the exhibits you saw, but I can offer these comments based solely on your photographs.
DSC_1271.JPG - copper ore, including malachite and azurite, by the looks of it
DSC_1285.JPG - there are many white minerals with an acicular habit, eg. natrolite
DSC_1317.JPG - opal
DSC_1315.JPG - a rather dark olivine, perhaps
As with most minerals, external appearance is often not enough to allow a reliable ID; microscopic and/or chemical and/or physical investigation is generally required.
The Vault has only a limited online presence - http://www.nhm.ac.uk/visit-us/galleries/green-zone/vault/
Assuming you can't get back there to update your notes, I suggest you contact the NHM and ask for whoever looks after The Vault.