Hello all, I have joined this forum to ask for a little help, I have been picking up a few minerals over the last 6 months (Im new to this) from various places online, I have a load that I just can not seem to identify, can anyone offer me any help???
If you need more pictures just let me know and i will upload them, I traveling to the NHM this sat in hope to find some of the same to try and complete my listings, but any help will be massivley appreciated
Mineral 3 (both parts please, the main mineral and the pink one that is growing in it)
With all these, bear in mind that it is often not possible to make a reliable ID from just photos.
In a lab, we'd use a variety of tests to narrow the list of candidates, such as: hardness, streak, density, crystal habit, cleavage, colour, associations (with host rock and/or other minerals), chemical tests, provenance. It might then be necessary to make a thin section and study it under transmitted light (plain and polarized). There are techniques beyond that, but they get expensive (mass spec., electron microprobe...)
1. The barrelled shape is worrying me; otherwise it looks like a dark form of quartz, but there are other possibilities
2. The two green lumps on the left: looks like epidote, going on the colour.
The darker green botryoidal one, I can't tell.
3. The white one might be halite? (does it tast salty?)
The pink one, I can't tell; maybe gypsum.
I can't see the crystal habit well on either of them.
4. The clear one is probably quartz; the pinky one looks like potassium feldspar, but that would be unlikely in this (open vein) situation, so not sure; I might be able to see a bit of calcite habit in it.
thank you for the reply, I understand that it is really hard and i thank you for taking the time to have a look, I just wish they where not so delicate, the green crystal in mineral 2 just brushes off and the white colour crystals on mineral 3 just break off easy, so im anable to take them to the NHM with me on sat to ask for some help with the ID as i live 200 miles away.
Nice minerals if you are taking the hobby seriously you need a few books a great test for identifcation is its hardness Talc is 1 and diamond 10 at the top from memory Quartze is 7, also a platinium wire and a blow lamp a small fragment will change the flame colour Other tests are scratching on a tile or acid A great hobby
Around my home as a boy it was bright Red, Strontium one street away was called Celestine Way
I would like to take it seriously and i think that the display cabnet makes an amaizing center piece in the living room,
I got a book called Dorling Kinderslay Handbook Rocks and Minerals but it does not hardley have any of the minerals that i own in it. unless there is more than one name for some of the minerals and im looking up a common name rather than a scientific name.
I have not used it for years but I have A Field Guide to Rocks and Minerals by Frederick H Pough its old so I cannot give the book number It gives tests individually for hundreds of specimens there must be others like it
I have just Googled his name its worth a look
Best wishes on a great hobby
Book - yes - absolutely - well said, Steve!
Also, if you fancy getting into this more, see if there is a local geology/fossilhunting/rockhounding/minerals soc/club/etc.
thanks mike, i have had a look and as i live in rural norfolk there really is not much here at all in the way of clubs ect ect, I can find sooooo much in america but not a lot here in england,
https://www.youtube.com/watch?v=SjGmm1BNggc my Mineral collection so far if anyone is interested
Well how about these:
- The Norfolk Geological Society (http://www.norfolkgeology.co.uk/), which uses the forum http://www.discussfossils.com/default.asp (not Norfolk-specific). It produces a newsletter (sample on the website), has field trips and lectures and I am sure you'd meet some interesting folk through it (and they will be of all sorts of levels of expertise).
- The Norfolk Mineral & Lapidary Society
You might also find these of interest:
- UKFossils Norfolk section
That has pages on specific areas of interest, eg this one on Hunstanton
(oh, and http://www.hunstantonfossils.co.uk)
- Martin Warren's Northfolk website, which as a geology section
- Norfolk Museums and Archaeology Service, whose Curator of Natural History can be contacted at firstname.lastname@example.org. (The Shirehall, Market Avenue, Norwich NR1 3JQ)
- Cromer Museum (seems to have over 10,000 fossils, going on the search I just did)