Gemau a Chrisialau o Gymru

Mae mwynau wedi chwarae rhan bwysig iawn yn natblygiad economaidd a chymdeithasol Cymru ers yr

Oes Efydd. Byth oddi ar y cyfnod hynafol hwnnw, mae brigiadau mwynol a mwyngloddiau wedi cael eu gweithio ledled Cymru, gan y Rhufeiniaid, mynachod Sistersaidd, cymeriadau enwog byd mwyngloddio'r ail ganrif ar bymtheg megis Thomas Bushell, ac yna ymlaen hyd oes aur y diwydiant mwyngloddio metelau yng nghanol y bedwaredd ganrif ar bymtheg, pan aed ati i agor siafftiau neu fwyngloddiau ar frigiad bron pob gwythïen a ffawt y wlad.

Ar hyn o bryd mae oddeutu 4,900 o wahanol fathau o fwynau yn cael eu cydnabod yn fyd-eang, ac mae presenoldeb 430 ohonynt wedi'i gadarnhau yng Nghymru.

Yma, cyflwynir detholiad o ddelweddau o fwynau a gedwir yn storfeydd Amgueddfa Cymru, gan ganolbwyntio ar rai o'r enghreifftiau mwyaf lliwgar yn y casgliadau.

sylw (36)

Nid yw sylwadau ar gael ar hyn o bryd. Ymddiheuriadau am yr anghyfleustra.
Julie
11 Ebrill 2022, 13:37
Hi, I've found according to Google, samples of Preceli golden healer quartz and snow quartz in my paddock. How can I officially identify them.
Kindest regards Julie
clayton
7 Tachwedd 2021, 20:56
hello there i've been holding on to some sort of stone for the last few years the stone look really rear and i would love to know more about it.
just wondering who would be the best person to contact to take a look at it the stone is approximately 50mm x 50mm and looks very unique thanks for your time
Iestyn
11 Awst 2021, 15:54
Where can I get a crystal stone tested and verified? Kind regards, Iestyn.
Rose Gadsby
2 Awst 2021, 13:16
Hi, about a year ago while walking along a beach in west wales I found some sort of crystal. I think it's called a quartz cluster? I'd love some clarification!

Thanks for your time,
Rose
Jalal ahmed
1 Awst 2021, 10:17
Hi I noticed there is hardly any findings in the North wales regions, although the terrain suggests its very mountainous which obviously means volcanic activity took place.

I am going to start a venture soon to hunt for crystals I'm the North wales Region is there is prospective locations you would suggest to look into or recommend please
Matthew Keylock
19 Ebrill 2021, 19:45

I have found what I believe is an Amethyst Crystal on a bridal path in Saundersfoot, Pembrokeshire.

I maybe wrong but I didn’t think Amethyst existed naturally in Wales??

Please Help.

Adrian
5 Ebrill 2021, 19:23
I found an unusually heavy rock with very glittery look which seems to polarise the light reflecting off it. It looks black but takes on an indigo hue under sun light and glitters in one direction with silver light. It is slightly magnetic. It's very strange looking very different to anything I've seen before and noticeably heavy. If I could get some help identifying it I would be very grateful.
Marc Haynes Staff Amgueddfa Cymru
23 Chwefror 2021, 09:57

Dear Sue Tansley,

Thank you very much for contacting us about your find. Our Curator of Petrology will get in touch with you, via the email address you have provided.

Best wishes,

Marc
Digital Team

Sue Tansley
20 Chwefror 2021, 11:05
I recently found a piece of blue/ grey veined granite with golden sparkles speckled on its surface. It caught my eye whilst walking on the beach at the mouth of the mawddach estuary opposite Barmouth at Fairbourne , can I send a photograph for identification. Or can you help me identify what I’ve found. Many thanks .
Lewis Scarff
24 Ionawr 2021, 21:42
Hi i could use your hrlp identifying some gems could i send some photos please

Many thanks
Lewis