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May 2020⚠102 imagesRe: Since we are staying home, how about seeing some minerals?Reply from Brent Lockhart in General.Here's a Diaspore from the Mugla Province, Turkey. It is 4.0 x 3.5 x 1.0 cms. and is from the recent pocket described in Rocks & Minerals Vol 95 #2 pp 145 - 151. Hope all are doing fine and have enjoyed seeing these great minerals.
Apr 2020⚠102 imagesRe: Since we are staying home, how about seeing some minerals?Reply from Brent Lockhart in General.Mt eye was attracted to the crystals on the upper right of the piece, very cool.
Apr 2020⚠102 imagesRe: Since we are staying home, how about seeing some minerals?Reply from Brent Lockhart in General.Thanks Debbie!
Apr 2020⚠102 imagesRe: Since we are staying home, how about seeing some minerals?Reply from Brent Lockhart in General.Very nice Dale, wow. When was it recovered? I love the way the epimorph size increases towards the top of the piece. Very interesting mineralogy.
May 2020⚠102 imagesSince we are staying home, how about seeing some minerals?Posted by Brent Lockhart in General.Since many of us are under some type of restriction due to the viral outbreak, how about some mineral photos to brighten things up? Here's one from the famous Reel Mine in Lincoln County, North Carolina. It is 14.0 x 11.5 x 8.5 cms. and comes from recent production in 2017/18.
Sep 2018Re: John VeevaertReply from Brent Lockhart in General.This is so sad, John was such a great guy, honest to a tee, and a trail blazing internet dealer. He had a great eye for specimens and brought so many new things and classic materials back from the shows he attended. It was a real high point reading his reports and spot on analysis at the end of ...
Mar 2018Re: Ojuela Mine MineralsReply from Brent Lockhart in Identity Help.Hi Alfredo
Yes, I have seen those with the Legrandites. I purchased a specimen which has an association of elongated white crystals labeled as Smithsonite. Unfortunately the piece is in for base making, so I am unable to confirm that the white crystals are indeed Smithsonite. For now I am ...
Mar 2018Re: Ojuela Mine MineralsReply from Brent Lockhart in Identity Help.Does anyone know what species were found with the recent Legrandite discoveries? This would be the batch seen at Tucson this year.
Sep 2016Native Sulphur InteractionsPosted by Brent Lockhart in General.Does anyone know if there are certain minerals which should not be in close proximity to a native Sulphur specimen? I understand that native Silvers are one species that should be separated, does anyone have experiences with others such as carbonates for example?
Many Thanks
Brent Lockhart
Jun 2016⚠1064 imagesRe: Gail's NEW favourite of the day, PART 2Reply from Brent Lockhart in General.Hi, this is my recent favorite, a Spinel twin from the Cung Truoi Mine, An Phu (Anfu), Luc Yen, Yenbai Province (Yen Bai Province), Vietnam. I had it exposed from the marble matrix, which showed a 4 cm symmetrical twin complete all the way round. It sort of looks like crystal model in ...
Apr 2016Re: Exploding CrystalsReply from Brent Lockhart in General.About seven years ago I had a photographer in doing some work, so I left my then halogen case lights on. As we walked back into the room a small "pop" came from the top shelf of one of the cases. It turned out to be the top of a Brazilian Topaz crystal as it detached along the basal cleavage ...
Mar 2016Re: Rock CurrierReply from Brent Lockhart in General.I only met Rock once, but his articles and descriptions of the many localities he visited were a part of my life since youth. His sense of humor and encyclopedic knowledge of minerals will be sorely missed. What a shock, RIP Rock.
Brent Lockhart
Mar 2015Re: Edit of photograph informationReply from Brent Lockhart in General.Thanks Debbie!
Mar 2015Re: Edit of photograph informationReply from Brent Lockhart in General.I think I have filed a delete request, but have another go. I will reload the photo with the correct photo attribution. Sorry for the extra work.
Mar 2015Re: Edit of photograph informationReply from Brent Lockhart in General.Hi Debbie
Here is a screen capture of the photo:
I will correct the copyright after deletion and resubmit it. I just want to keep all my copyrights in compiance. Many thanks for your help.
Brent
Mar 2015Re: Edit of photograph informationReply from Brent Lockhart in General.Can I delete it and start over?
Mar 2015Edit of photograph informationPosted by Brent Lockhart in General.Hi
I need to add a photographer copyright which was left off by mistake when I originally entered the specimen. The domain is showing ony "public" in the box and will not let me add the copyright info. How can I change it?
Many Thanks,
Brent Lockhart
Oct 2014Re: Min. Rec. Supplement – Mineral Collections in TexasReply from Brent Lockhart in General.As a contributor to the MR supplement, I had no intention of ever putting a Texas piece, or a Rhodochrosite etc. for that matter in the issue. What I thought might be fun was a look at the variability of crystallography in common species, in this case from the alpine clefts of Switzerland. ...
Dec 2013Help on Azurite provenancePosted by Brent Lockhart in Identity Help.Photo
Hi All -
I recently acquired these two Azurite xls from the Tsumeb mine. I was wondering if anyone had further information on when this pocket was encountered or at what approximate level in the mine. The crystals have a distinctive square cross section. The smaller piece has a 4.5 ...
Jan 2014Re: Cuprite exposure to sunlightReply from Brent Lockhart in Education.Thanks to all for the unanimous advice to avoid light exposure. It makes sense to me that darker secondary products such as Copper or Tenorite may form and begin to block the transparent areas. I really like the contrast on these Milpillas Cuprites between the white matrix and the ruby red ...
Jan 2014Re: Cuprite exposure to sunlightReply from Brent Lockhart in Education.Yes, that is good to know. Perhaps I should keep it out of light - better to be safe than sorry.
Jan 2014Re: Cuprite exposure to sunlightReply from Brent Lockhart in Education.Hi Rob
I have sent the piece off to have a base made for it, so am not currently able to answer your question. Sorry about that.
Cheers,
Brent
Nov 2013Cuprite exposure to sunlightPosted by Brent Lockhart in Education.Hi All
I have a general question regarding the effects of sunlight on Cuprite. Has anyone noticed darkening of specimens after routine exposure to sunlight? I have the attached specimen of Cuprite from the Milpillas Mine and wanted to take steps to protect it if needed. Thanks for your ...
Sep 2013⚠1064 imagesRe: Gail's NEW favourite of the day, PART 2Reply from Brent Lockhart in General.This is a new acquisition from the recent Mimetite find at the Ojuela Mine, Mapimí, Mun. de Mapimí, Durango, Mexico and my favourite of the day.
The specimen dimensions are 10 x 6 x 5 cms.
Jul 2013⚠1064 imagesRe: Gail's NEW favourite of the day, PART 2Reply from Brent Lockhart in General.I was enjoying this Smoky Quartz gwindel on its new base and thought I'd share it. The specimen is 12.5 cms. across and is from the Zinggenstocke, Grimsel, Kanton Bern, Switzerland. The xl is glassy, relatively flaw free, and clear enough to see through without strong lighting.
Jul 2019⚠1064 imagesRe: Gail's NEW favourite of the day, PART 2Reply from Brent Lockhart in General.Here is a new addition, a Barite from Milpillas measuring approximately 15 cms. across. It is from the recent find there.
Jul 2019⚠1064 imagesRe: Gail's NEW favourite of the day, PART 2Reply from Brent Lockhart in General.Dear AM
Very nice piece, do you have the specific locality?
Jul 2019⚠1064 imagesRe: Gail's NEW favourite of the day, PART 2Reply from Brent Lockhart in General.The Amethyst is an acquisition in the last 3 weeks, but not at the Tucson show.
Jul 2019⚠1064 imagesRe: Gail's NEW favourite of the day, PART 2Reply from Brent Lockhart in General.My favorite today is an Amethyst from Feischergletscher, Goms Valley, Wallis,Switzerland measuring 15 cms. from tip to base. From the finds made in the mid 1970s.
Jul 2019⚠1064 imagesRe: Gail's NEW favourite of the day, PART 2Reply from Brent Lockhart in General.Here is my favorite for the day, a Hematite on Quartz from
Cavradi gorge, Curnera Valley, Tujetsch (Tavetsch), Vorderrhein Valley, Grischun (Grisons; Graubünden), Switzerland
Dimensions 10 x 9 x 8 cms.
Jan 2013Re: Sad loss for the mineral world today.Reply from Brent Lockhart in General.Here's a link to the Mineralogical Record, look under their Biography archive. tTere's also an article in one of the issues as I recall.
http://www.minrec.org
Jan 2013Re: Sad loss for the mineral world today.Reply from Brent Lockhart in General.What a shock! Ed was a giant of the mineral world and a driving influence on modern mineral collecting. My condolences and thoughts go out to the Swoboda family. Ed was a consumate collector, expert miner, and advocate for the mineral world and will be sorely missed. I can remember reading his ...
Jul 2019⚠1064 imagesRe: Gail's NEW favourite of the day, PART 2Reply from Brent Lockhart in General.Nice Hematite Colleen, love to see the classic Swiss association pieces!
Jul 2019⚠1064 imagesRe: Gail's NEW favourite of the day, PART 2Reply from Brent Lockhart in General.And here is an ornament to hang on the tree. Vanadinite, ACF Mine (incl. Coud'a shaft; Coudia shaft), Mibladene (Mibladén; Mibladan; Miblanden), Upper Moulouya lead district, Midelt, Khénifra Province, Meknès-Tafilalet Region, Morocco 5 x 4.3 x 3 cms
Merry Xmas to all - and great thread ...
Jul 2019⚠1064 imagesRe: Gail's NEW favourite of the day, PART 2Reply from Brent Lockhart in General.Here is my version of a Xmas tree, Happy Holidays to all in the Mindat community.
Malachite psuedo Azurite, Milpillas, Sonora, Mexico, recent pocket. Specimen dimensions ar 9 x 7.5x 5cms.
Cheers
Brent Lockhart
Dec 2014⚠145 imagesRe: The Best from Down UnderReply from Brent Lockhart in General.That IS a great Smithsonite!
Dec 2014⚠145 imagesRe: The Best from Down UnderReply from Brent Lockhart in General.One more Crocoite
Specimen dimensions 10 x 10 x 6 cms
2010 Pocket Adelaide Mine
Dundas Zeehan District, Tasmania
Dec 2014⚠145 imagesRe: The Best from Down UnderReply from Brent Lockhart in General.Ferrocolumbite Spargoville, Western Australia, Australia
Specimen dimensions 7 cms x 6 cms.
Dec 2014⚠145 imagesRe: The Best from Down UnderReply from Brent Lockhart in General.Crocoite 2010 Pocket Adelaide Mine, Dundas -Zeehan District, Tasmania, Australia
Specimen dimensions 16.5 x 12 cms.
Apr 2011Re: The Best from AustraliaReply from Brent Lockhart in General.Here is a Crocoite group I acquired from The Adelaide Mining Company from the recent 2010 pocket measuring 16.5 cm x 12 cm. Glad to see some good Aussie minerals!
Brent Lockhart
USA
Feb 2011Re: Award for JolyonReply from Brent Lockhart in General.Congratulations Jolyon, this very well deserved. You have put an enormous amount of effort into making Mindat an outstanding reference and communication resource for the mineral collecting community. Thank you!
Brent
Jun 2011Re: Permission to upload photoReply from Brent Lockhart in How to Contribute.Hi
This is a test image of a Dao Ping Mine Pyromorphite of mine, specimen measures 13 x 9 x 2 cms. I've never added epeciemns to Mindat, so I just wanted to see if this one could be placed on the site. I have other images of lead minerals and Alpine material.
Thanks,
Brent Lockhart
