Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography
╳Discussions
💬 Home🔎 Search📅 LatestGroups
EducationOpen discussion area.Fakes & FraudsOpen discussion area.Field CollectingOpen discussion area.FossilsOpen discussion area.Gems and GemologyOpen discussion area.GeneralOpen discussion area.How to ContributeOpen discussion area.Identity HelpOpen discussion area.Improving Mindat.orgOpen discussion area.LocalitiesOpen discussion area.Lost and Stolen SpecimensOpen discussion area.MarketplaceOpen discussion area.MeteoritesOpen discussion area.Mindat ProductsOpen discussion area.Mineral ExchangesOpen discussion area.Mineral PhotographyOpen discussion area.Mineral ShowsOpen discussion area.Mineralogical ClassificationOpen discussion area.Mineralogy CourseOpen discussion area.MineralsOpen discussion area.Minerals and MuseumsOpen discussion area.PhotosOpen discussion area.Techniques for CollectorsOpen discussion area.The Rock H. Currier Digital LibraryOpen discussion area.UV MineralsOpen discussion area.Recent Images in Discussions
GeneralMinerals with Inclusions
12th May 2019 00:18 UTCRolf Luetcke Expert
I come across a lot of inclusions in many of the minerals in our collection and thought it would be fun if I started a thread for folks who have minerals with inclusions they would like to share.
The photo here we found near us in St. David, Arizona in a wall with colorless gypsum. This one had iron inclusions, mostly hematite from silvery, metallic, to red-brown to black.
Hope others will enjoy adding some.
12th May 2019 00:22 UTCRolf Luetcke Expert
These are some iron inclusions in tubular cavities inside quartz a friend collected in the Bancroft Ontario, Canada area. Some actually still have hematite in the tubues, these two have become hollow and probably have iron oxides lining the tubes.
12th May 2019 03:49 UTCRichard Gibson 🌟
12th May 2019 09:08 UTCBruce Cairncross Expert
Hematite included quartz from Goboboseb, Namibia. The field of view is 1.5 cm.
Pyrite included in quartz from Bovengeluk, Griquatown district, South Africa. Field of view is 9 mm.
12th May 2019 09:43 UTCKeith Compton 🌟 Manager
Those tubular cavities in Quartz are amazing ... I want one !!
Nice photo
Cheers
12th May 2019 10:23 UTCFrank K. Mazdab 🌟 Manager
neat inclusions you have there. I'm curious... the metallic ones... are you sure they're pyrite? Because they seem like dead ringers for the pseudo-tetrahedral morphology of chalcopyrite. From Goldschmidt's Atlas of Crystal Forms (even the striations seem oriented correctly):
12th May 2019 12:02 UTCBruce Cairncross Expert
12th May 2019 12:53 UTCFrank K. Mazdab 🌟 Manager
12th May 2019 13:22 UTCHarold Moritz 🌟 Expert
Circular cut-out of very thin sheet of muscovite showing interlayered inclusions of brown goethite, red hematite and dark unspecified Mn-oxide/hydroxides. Some say these include magnetite but they are not attracted to a magnet. The inclusions vary throughout the mica book and their combined overlapping makes a book of this material look opaque and dusky. Books also show patches of bright iridescence from thin-film interference caused by tiny gaps between the muscovite sheets due to the inclusions.
Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex Co., Connecticut, USA
Gallery of many at:
https://www.mindat.org/gallery.php?cform_is_valid=1&loc=217860&min=2815&photoclass=1&showtype=1&orderxby=&cf_pager_page=2
12th May 2019 15:10 UTCRolf Luetcke Expert
Thanks, thought that people would enjoy adding things here.
Keith,
Wish I had a bunch of those but we only were given a couple by a good friend who collected them.
Here is a clear calcite crystals with chalcophanite inclusions.
12th May 2019 15:20 UTCRolf Luetcke Expert
One of my favorites is the copper in gypsum from the Mission Mine in Arizona
12th May 2019 15:24 UTCKeith Wood
Quartz crystal with unidentified white, feathery inclusions. This crystal is from within a large granodiorite stock. Skarn around the stock containing wollastonite has prompted people to suggest these are wollastonite inclusions, but the location is quite central in a lobe of the stock. Wollastonite seems quite unlikely. Any guesses would be welcome.
12th May 2019 15:28 UTCKeith Wood
Stibnite crystals in quartz. A good example from one of the great locations for this combination.
12th May 2019 15:32 UTCRichard Gibson 🌟
12th May 2019 15:47 UTCBob Harman
The Harrodsburg road cuts here in Monroe County Indiana is the type locality for smythite. Smythite is the only mineral first identified and named from Indiana.
CHEERS.....BOB
12th May 2019 16:01 UTCRichard Gibson 🌟
12th May 2019 16:05 UTCHarold Moritz 🌟 Expert
They are either hollow or partially to completely filled with what appears to be tiny secondary albite crystals, which are abundant lining the pockets. What would form long bladed crystals late in the paragenesis in a pegmatite? Zeolites come to mind and one day while looking in The Collector's Guide to Zeolites I came across bikitaite. The crystals are dead ringers and it is a pegmatite zeolite.
https://www.mindat.org/min-670.html
It makes sense, this is a Li rich pegmatite and Li is very mobile (much spodumene and lithiophilite there is altered). Very rare though, but then it may have dissolved away in many pegs, only here its presence was preserved inside quartz (and rarely as albite epimorphs with hollow interiors). Replace Li with Na, as is common in many peg alterations, and you are left with the chemistry of albite and water. Don't know if I can ever prove this though.
12th May 2019 16:33 UTCKeith Wood
Mine are definitely crystalline inclusions. My photo isn't great, but I can tell you they are isolated sprays, fully 3D, entirely enclosed in the quartz. I just can't think of a white mineral with that habit that matches the environment.
The paragenesis of the site is quite interesting. Vugs were initially lined with typical skinny quartz crystals with 3:1 to 4:1 aspect ratios. Later, individual larger crystals overgrew those with stubby styles and 1.2:1 to 2:1 aspect ratios. About 1% of these have pale amethyst coloring throughout. Other stubby crystals have thin overgrowths of pale amethyst. So the growth of the amethyst was a later stage. I get the idea of an extended period of growth of the stubby crystals. At some point these feathery crystals grew on about 5% of the stubby crystals and then was overgrown by more colorless quartz and, perhaps if one could find the example, by an amethyst layer.
This picture captures the early paragenesis of skinny to stubby quartz:
12th May 2019 16:46 UTCHarold Moritz 🌟 Expert
12th May 2019 17:09 UTCKnut Eldjarn 🌟 Manager
could Bavenite be a possibility for your bladed xls included in quartz?
12th May 2019 17:24 UTCRolf Luetcke Expert
This is one from Mexico, a smoky quartz with tourmaline inclusions that turned out to be dravite after they were analyzed.
12th May 2019 17:27 UTCRolf Luetcke Expert
Milpillas is so well known for the azurite and malachite but some early material I purchased was also full of plancheite. Some material was cutable and inside one quartz section was a nice ball of acicular plancheite.
12th May 2019 19:22 UTCAlix Julien
Some small inclusions for you :)
I hope the photos are not too bad.
I start with one of the most popular inclusions of the general public:
(sorry there was one posted while i was writing so that's second photo Rutile inclusions in quartz of the post. ;)
Rutile (& Hematite) in Quartz - Loc.: Novo Horizonte, Bahia, Brazil (probably)
Two photo of acicular Rutile in Topaz, the last of which has a broken crystal of Rutile in 2 and included in 2 different crystals of Topaze!
12th May 2019 19:27 UTCAlix Julien
But there are also lamellar crystals (Calcites or Siderite -→ tset Hcl to do) included in the Fluorite not visible (difficult to discern/see) on the photo.
Fluorite , Quartz (... see text) - Yindu Ag-Pb-Zn deposit, Hexigten Banner (Keshiketeng Co.), Ulanhad League (Chifeng Prefecture), Inner Mongolia, China
See you soon
Alix JULIEN
12th May 2019 20:02 UTCRolf Luetcke Expert
Here is one we got in a flat one time a number of years ago. A guy stopped in our store selling a flat of amethyst. I told him I had no interest in amethyst, especially since it was not "clean" looking material but was full of inclusions. People like the nice amethyst without a number of other things in it. He just wanted to get rid of the box and said I could have the whole box for $15. Well, couldn't resist that price for a whole box of minerals.
When I took the box to my microscope I was amazed at what I saw inside the crystals and the flat took on a whole different meaning for me.
Kept several and sold the rest to micromount collectors.
12th May 2019 20:12 UTCAlix Julien
Your inclusions have a vegetal aspect and even they can make think mushrooms!
Bravo!
Alix JULIEN
12th May 2019 21:23 UTCKnut Eldjarn 🌟 Manager
The second is inclusions of boulangerite which is quite common in fluorite from the Yaoganxian mine in China. The unusual feature in this case is a perfect ring of boulangerite formed in one of the fluorite crystals.
12th May 2019 21:52 UTCRolf Luetcke Expert
Thank you for adding to the thread and for your nice comments.
Knut,
Love those boulangerite rings. I think a few minerals do those rings.
This one is a cuprite over copper in calcite from Bisbee.
12th May 2019 22:14 UTCJessica Guichard (2)
12th May 2019 22:15 UTCHarold Moritz 🌟 Expert
https://www.mindat.org/photo-427805.html
https://www.mindat.org/photo-427800.html
The mineral world is just full of crazy stuff!
Knut, bavenite is a possibility for the Strickland quartz inclusions, it does occur locally, but for reasons too off topic won't get into now. Eventually I will write a mindat article about them.
12th May 2019 22:38 UTCRolf Luetcke Expert
Those are fantastic, love those kinds of inclusions.
Jessica,
Nice one in gypsum.
A friend collects gold from over the world and my wife Mary always thought that somewhere in the world would be gypsum with gold included inside. I had never seen one and neither had our gold collecting friend.
Next day I handed Mary a clear selenite with a gold inclusion in it. She knew right away I had made it but we ended up sending it to our friend who collects gold anyway. Still looking for the real thing.
12th May 2019 23:44 UTCKeith Wood
I've puzzled over the zeolite idea a few times, but when i think about zeo localities i generally think of druzy quartz or even chalcedony. However even Upper New Street quarry has stubby amethyst crystals on occasion. i have to allow that you are likely correct.
12th May 2019 23:46 UTCKeith Wood
12th May 2019 23:58 UTCRolf Luetcke Expert
The inclusions in the amethyst are goethite.
Here is another one from Bisbee, a malachite in calcite.
13th May 2019 09:54 UTCBruce Cairncross Expert
Here a few more from my collection.
Does a bug count?? Insect in polished amber, 1.7 cm.
This is a close-up of a specimen I obtained from Ross Lillie during the 1980s. Chalcopyrite included in fluorite from the Denton Mine, Illinois. Field of view is 4 cm.
Another ex-Ross Lillie specimen of hydrocarbon-included fluorite from the Minerva No. 1 mine, Illinois. Field of view is 4 cm.
13th May 2019 10:01 UTCBruce Cairncross Expert
This is a 138 carat diamond mined from the Vaal River alluvial gravels in the Barkly West district, South Africa. it contains unidentified black inclusions. I was fortunate to photograph this diamond before it went on auction.
The Messina mine is well-known for its ajoite/shattuckite/papagoite inclusions in quartz. Much less common are the inclusion of the secondary copper minerals in calcite. Here is one (field of view is 2.9 cm) of one of these species included in scalenohedral calcite.
Finally an ettringite crystal included in gypsum from N'Chwaning II mine, Kalahari manganese field, RSA, 6.8 cm.
13th May 2019 11:53 UTCFrank K. Mazdab 🌟 Manager
Shown are abundant large peachy-pink anhedral masses of weakly-zoned eudialyte to ferrokentbrooksite richly included with mostly-euhedral colorless nepheline crystals, some of which themselves contain tiny inclusions of other unidentified mineral(s). Also, abundant aenigmatite in this thin section (not shown in this view, but visible in the linked full thin section image) is also heavily included (with nepheline and alkali feldspar).
For those who'd like to see the entire thin section, here's the whole sample in both PPL and under XP:
https://www.rockptx.com/fkm-201-to-fkm-225/#FKM-207
13th May 2019 12:58 UTCDebbie Woolf Manager
Instead here's hollandite included in quartz from Madagascar fov 4mm.
13th May 2019 13:09 UTCBruce Cairncross Expert
13th May 2019 13:22 UTCKevin Conroy Manager
13th May 2019 13:25 UTCRolf Luetcke Expert
Thank you guys-gals for adding favorites and great fun for me to see all the other cool photos.
Bruce,
Yes, the insect in amber certainly fits. I also have some of those chalcopyrite included fluorites and have not posted any.
Debbie,
Very nice hollandite!!
Kevin,
Looks like an ant head in the gypsum.
Thanks all
13th May 2019 13:27 UTCKevin Conroy Manager
13th May 2019 13:33 UTCRolf Luetcke Expert
A couple of fluorites from China with jamesonite inclusions.
13th May 2019 13:37 UTCRolf Luetcke Expert
Here is a favorite with Tri State fluorite with a negative crystal. The first one shows the hollow crystal, second photo shows that a slight change of angle and the same negative crystal looks solid but it is the same inclusion, just a different light angle.
13th May 2019 15:04 UTCAndrew Debnam 🌟
Chalcolpyrite in Calcite from the Faraday (Madwaska) mine.
45x36x18mm
13th May 2019 15:21 UTCRichard Gibson 🌟
13th May 2019 15:48 UTCRichard Gibson 🌟
13th May 2019 15:57 UTCEric He
Purple Lollipop Pocket, King County, WA, USA.
Self collected Sept 2018.
13th May 2019 18:32 UTCRolf Luetcke Expert
Here is an unusual inclusion from the Rowley Mine in Arizona, a mimetite in baryte.
14th May 2019 02:42 UTCTony Charlton
Rutile in quartz. El Dorado county, California.
Tourmaline, rutile and fuchsite in quartz. Found in Merced river gravel near Knights Crossing, California.
14th May 2019 02:56 UTCTony Charlton
Hematite in quartz,
El Dorado county, California
Quartz and hematite in quartz.
El Dorado county, California
Pyrite on sagenite in quartz.
Unlisted location, California.
14th May 2019 13:48 UTCRolf Luetcke Expert
Thanks all for adding your inclusions, love seeing all the varieties.
This one is a gift from a friend of garnet in muscovite from a subway tunnel that was dug in Baltimore Maryland.
14th May 2019 14:40 UTCRolf Luetcke Expert
Another muscovite with inclusions, this time linarite in muscovite from the Mascot Mine in New Hampshire.
14th May 2019 19:43 UTCAlix Julien
Here are some small inclusions of Galena (sorry but I do not have the material to make micro-photos. Software problem) straight from Bulgaria.
Calcite on(/ Epimorphosis of Calcite) Quartz with Galena - Krushev dol mine, Madan ore field, Smolyan Province, Bulgaria
See you soon
Alix JULIEN
14th May 2019 21:03 UTCMark Heintzelman 🌟 Expert
14th May 2019 21:39 UTCRolf Luetcke Expert
Room for all here on this thread and still nice pieces.
Mark,
Wonderful piece and photo, have always enjoyed seeing those. So far have not gotten one for our collection, too expensive at the last show I saw them.
Thanks all.
14th May 2019 21:45 UTCRolf Luetcke Expert
Here is one from the Johnson Mine in Arizona and it is a molybdenite, encased inside clear chalcedony. So, in a sense, an inclusion inside the chalcedony but at the same time an overgrowth of chalcedony over the molybdenite. Some crystals in the specimen were free standing and uncoated but some were encased in the chalcedony. Kind of an odd find for me.
14th May 2019 21:50 UTCHarjo Neutkens Manager
Here are some included things I collected.
Hematite inclusions in quartz from Bierghes, Belgium
Marcasite inclusions in calcite from Ave-et-Auffe, Belgium
Rutile inclusions in albite from Bertrix, Belgium
Rutile inclusions in quartz from Marvie, Belgium
Dolomite and chlorite inclusions in quartz from Bierghes, Belgium
Marcasite inclusions in baryte from Doische, Belgium
Byssolite inclusions in apatite from the Knappenwand, Austria
Ilmenorutile inclusions in topaz from the Schneckenstein, Germany
Quartz and a universe of other inclusions in fluorite from Foisches, France
14th May 2019 22:51 UTCRolf Luetcke Expert
Yes, you were correct, it seems it has been enjoyed by many and thanks for posting so many wonderful photos, the last fluorite with a world inside.
So glad people like adding things from their collections.
Very nice to see your photos.
Rolf
15th May 2019 01:11 UTCTom Tucker
15th May 2019 07:45 UTCBruce Cairncross Expert
Quartz included by blue ajoite, green epidote and orange iron-rich albite, 6.2 cm.
This is one of my favourite Messina specimens, albeit that it had to have some of the surfaces polished to reveal the included red hematite, fibrous white kaoline, pale blue ajoite and dark blue papagoite(?)/ shattuckite(?), 5.2 cm.
15th May 2019 08:29 UTCKeith Compton 🌟 Manager
That's one confused Quartz xl
Nice
15th May 2019 09:32 UTCFrank K. Mazdab 🌟 Manager
15th May 2019 11:12 UTCAlix Julien
Without laughing, this Quartz has inclusions that form a phantom and I find that this phantom distorts the perception of the shape of quartz (as if it doubled the edges [/ridge]. That's wonderful, i love that! Best specimen Bruce!
Congratulations to all for your photos. Harjo, your photos are impressive! I can not wait to reach this level in photography ;)
See you soon
Alix JULIEN
15th May 2019 13:44 UTCRolf Luetcke Expert
That is one "Killer" piece, anyone would be proud of that piece in their collection.
Thanks for sharing.
15th May 2019 21:06 UTCRolf Luetcke Expert
A couple of the Illinois fluorites with chalcopyrite inclusions from a box of multi colored pieces I was given with no information and only a few had inclusions.
16th May 2019 02:18 UTCTony Charlton
Rutile, pyrite and sagenite in quartz.
Pyrite on sagenite in quartz.
Dolomite/ankerite on sagenite with unidentified cluster in quartz.
16th May 2019 02:24 UTCTony Charlton
Dolomite/ankerite, sagenite and pyrite in quartz.
Dolomite/ankerite, sagenite , pyrite and others in quartz.
Reticulated rutile in quartz.
16th May 2019 02:40 UTCTony Charlton
Dolomite/ankerite, sagenite in quartz.
Close up of dolomite/ankerite.
Some more of the tiny crystals in quartz.
16th May 2019 04:37 UTCDoug Schonewald
Pyrite in quartz
Goethite piercing quartz with a hematite ball on the exposed needles
16th May 2019 13:41 UTCRolf Luetcke Expert
Great inclusions and thanks for adding those, nice material.
16th May 2019 15:31 UTCDebbie Woolf Manager
I am showing my ettringite (3mm) in gypsum as it has inclusions on the termination maybe gaudefroyite?
16th May 2019 15:49 UTCKelly Nash 🌟 Expert
16th May 2019 19:18 UTCStephen Rose Expert
16th May 2019 19:55 UTCRolf Luetcke Expert
Here is one from the Southwest Mine in Bisbee with malachite and other things inside calcite.
16th May 2019 19:56 UTCRolf Luetcke Expert
This one is a little harder to see but it is small cubes of murdochite on needle malachite and included in colorless calcite.
16th May 2019 20:31 UTCJeff Weissman Expert
16th May 2019 20:32 UTCJeff Weissman Expert
16th May 2019 20:32 UTCJeff Weissman Expert
16th May 2019 20:34 UTCJeff Weissman Expert
16th May 2019 21:45 UTCRichard Gibson 🌟
16th May 2019 22:11 UTCKevin Conroy Manager
17th May 2019 01:48 UTCLawrie Berthelsen (2)
17th May 2019 07:45 UTCBruce Cairncross Expert
Cerussite enclosing chalcotrichite frm Tsumeb, 3.5 cm
Rutile in quartz from Zambia, 4.5 cm
Blue clinochlore in quartz from the Witwatersrand gold field (President Brand mine), 4.2 cm
17th May 2019 10:07 UTCTimothy Greenland
1) Fluorite in quartz from Antsirabé, Madagascar and
2)Polydymite in calcite from Hamilton, Illinois, USA.
Just wish I could do them more justice!
Cheers
Tim
17th May 2019 11:30 UTCAndy Lawton
17th May 2019 13:00 UTCTimothy Greenland
That brings back memories of the several outings I made to Calton Hill quarry back in the early 1960s... Fascinating place, but I'm told it has all been built over now. Here's an example where you can see both hematite and goethite inclusion zones (10 x 9 cm). There is also some iron-stained baryte present... Collected April 29 1962.
Cheers
Tim
17th May 2019 14:21 UTCRolf Luetcke Expert
This is a slightly different inclusion, where you can't see the actual crystals of malachite inside the cuprite but they pierce right through the cuprite so the malachite probably grew first and the cuprite came later and encased the malachite.
Thanks all for adding such nice photos.
Love seeing all the inclusions.
Bruce, we have chalcotrichite included pieces too but ours are in calcite and not cerussite, cool piece.
17th May 2019 14:42 UTCKevin Conroy Manager
The geodes that this quarry is famous for were found in the upper level of the quarry, about 80 to 100 feet above the calcite/polydymite pockets.
17th May 2019 14:46 UTCAndy Lawton
The quarry was used as a landfill site so mostly all backfilled now. It's been a few decades since I visited. There was a small section left, including the basalt columns forming the mini Giant's Causeway. I believe it is now an SSSI for the mantle xenoliths that were found there.
Cheerio, Andy
17th May 2019 15:26 UTCTimothy Greenland
Thanks for the update Andy. I'll just keep the memories - and the specimens I got at the time! There was amethyst and some nice smoky quartz groups too... but no inclusions!
Cheers
Tim
17th May 2019 19:43 UTCStephen Rose Expert
17th May 2019 20:04 UTCStephen Rose Expert
18th May 2019 02:03 UTCTony Charlton
There are sagenite, pyrite, hematite, dolomite/ankerite and several unidentified crystals in these pictures.
From a quartz crystal found in central Sierra Nevada mountains of California.
18th May 2019 02:28 UTCTony Charlton
Reticulated rutile after brookite in quartz. Unlisted location California.
Brookite in quartz. Unlisted location California.
Hematite and sagenite in quartz. Same location as others.
18th May 2019 03:06 UTCTony Charlton
Chlorite in quartz.
Adularia and chlorite in quartz.
Close up of adularia in previous crystal.
These 2 crystals were found at Big X mountain, El Dorado county, California.
18th May 2019 03:21 UTCTony Charlton
Pyrite and hematite in quartz.
Close up of the hematite, which has formed in a crack in the quartz.
And a closer shot of same.
From the unlisted location mentioned above.
18th May 2019 03:33 UTCTony Charlton
7 inches long.
4 inches long
A couple of the rutilated quartz crystals that came from the unlisted location in My previous postings.
One of My favorite crystals from that location is this little piece that has rutile, brookite, sagenite, muscovite, adularia, dolomite/ankerite, pyrite, hematite and at least 3 unidentified minerals/crystals in it.
Unfortunately it defies close up photography.
18th May 2019 14:16 UTCRolf Luetcke Expert
Nice photos and interesting inclusions, thanks for posting those, good material.
18th May 2019 14:50 UTCTony Charlton
-------------------------------------------------------
> Tony,
> Nice photos and interesting inclusions, thanks for
> posting those, good material.
Thank You Rolf.
The best part is they are all self collected.
18th May 2019 15:31 UTCRolf Luetcke Expert
Nice to have collected those. The comment was mostly based at the hematite in several photos since I also found similar at a local mine in SE Arizona.
I will add those here. Fun thing is that in one it looks like a pie chart with part red and part black.
in the above photos, some of the hematite is included in the quartz and some formed in cracks and is surface.
18th May 2019 19:11 UTCEd Clopton 🌟 Expert
Great thread--I have enjoyed reviewing it. May post something of my own if the dust settles at home & work sufficiently.
20th May 2019 14:50 UTCEd Clopton 🌟 Expert
2mm pyrite crystal in a 27mm quartz crystal, Spruce Claim, King County, Washington:
4mm reticulated marcasite in calcite, Pint's quarry, Raymond, Iowa, personally collected 6/1987. The left-hand photo was taken with a polarizing filter to cancel out one of the doubly-refracted images that makes the unfiltered right-hand photo difficult to "read". (photo by Dan Behnke, posted as Mindat photo #815106 with his permission)
22nd May 2019 00:23 UTCRolf Luetcke Expert
From the Ojuela Mine in Durango Mexico, the adamite is fairly common and we have quite a few in our collection but this one has cool iron minerals included inside the yellow adamite crystals.
22nd May 2019 21:59 UTCEch Noch
22nd May 2019 22:02 UTCEch Noch
22nd May 2019 22:17 UTCEch Noch
Chlorite included quartz with course grained chlorite with delightful green color.
Hematite, Rutile, Muscovite, and others unknown inclusions. 1x.35x.25” crystal.
22nd May 2019 22:40 UTCEch Noch
Another different crystal, FOV is probably close to .25”, showing 2 colors of Rutile, blued steel color and blonde.
Tourmaline of unknown species included in smoky quartz on 2” block.
22nd May 2019 22:51 UTCRolf Luetcke Expert
Very nice inclusions in the quartz crystals, thanks for posting those.
23rd May 2019 00:03 UTCEch Noch
23rd May 2019 14:17 UTCRolf Luetcke Expert
The thread is not meant to exclude anyone loving inclusions in any mineral, loved that last photo, great piece!!
I wanted to put one in that has me scratching my head a bit.
The piece is self collected at the Johnson Mine in SE Arizona. I had gone with a geologist on a sampling trip and they had a shovel that would scrape places to gather new material for analysis and I was able to collect samples too.
The one area had a lot of copper mineralization and it was filling all the fractures in the host rocks. I was able to see the green was malachite but then other things were going on. There were long crystals that were kind of colorless to white that I have no idea exactly what they are. Then malachite grew on those elongated crystals. The first photo shows the one long crystal that is not overgrown but above it is one, a bit hard to see, that is covered by malachite. There is a lot of allophane in the material and I think that it is possible the allophane joined with the malachite and in the second photo one sees the transparent green coating those elongated crystals. It is a bit hard to see since the field of view is quite small. It had me wondering what was going on here. They are too small to actually do much with except enjoy looking at.
Thought I post them since I just came across them yesterday in a couple of malachite pieces I had in our collection.
25th May 2019 03:22 UTCEch Noch
{ Attachment 81678 Unavailable! }
25th May 2019 03:24 UTCEch Noch
25th May 2019 17:10 UTCRolf Luetcke Expert
Here are a couple of agate slabs we have and today I took a couple of photos to show how the inclusions make cool patterns inside.
26th May 2019 18:33 UTCStephen Rose Expert
26th May 2019 20:14 UTCEch Noch
Here is one I collected from a pegmatite deposit. Epidote on feldspar with a chlorite included quartz crystal perched in the middle.
26th May 2019 20:32 UTCEch Noch
Muscovite in and on smoky quartz.
Heavily geothite included amethyst secondary growth over the fragment of a much larger smoky quartz crystal.
27th May 2019 19:42 UTCStephen Rose Expert
27th May 2019 19:47 UTCRolf Luetcke Expert
Wulfenite crystal from the Rowley Mine Arizona, with inclusions and on an orange mimetite.
30th May 2019 23:32 UTCRolf Luetcke Expert
This piece was given to me by a friend a number of years ago and at that time he said it was marcasite in the calcite. Later it was shown to be pyrite but I see that chalcopyrite is also at the location and often included also. A bit hard to tell in the crystals since they are not well pronounced. Cool stack of crystals in the iceland spar.
31st May 2019 15:10 UTCRobert Rothenberg
I also have chalcopyrite inclusions, but they are not as iteresting (to me).
Inspired by Rolf's post.
31st May 2019 15:11 UTCRobert Rothenberg
31st May 2019 16:49 UTCRolf Luetcke Expert
Great image and cool shape.
1st Jun 2019 23:06 UTCRolf Luetcke Expert
These are smythites included inside baryte crystals in a quartz geode, collected by J. Hall.
10th Jun 2019 00:33 UTCRolf Luetcke Expert
These were from a wash near us in St. David Arizona. Not only did they have hematite in dendritic forms but also a rainbow reflection from one of the fracture lines in the gypsum. Made for a cool scene.
16th Jun 2019 21:23 UTCRolf Luetcke Expert
This is a clear meyerhofferite crystal with an unknown white cluster inclusion from Inyo Co. California.
20th Jun 2019 20:46 UTCRolf Luetcke Expert
Bit of an odd inclusion but the mimetite is definitely going through the wulfenite, from the Rowley Mine in Arizona.
20th Jun 2019 20:50 UTCRolf Luetcke Expert
Here is one that is almost always found as an inclusion inside quartz, the macquartite from Tiger Arizona.
20th Jun 2019 21:17 UTCEch Noch
20th Jun 2019 22:09 UTCRolf Luetcke Expert
Thanks for the nice comments.
Just over ten years ago, for me anyway, the technologies finally came together in affordable form to get a trinocular microscope with a digital camera designed for the microscope use and the same time stacking programs that allowed me to finally do what I wanted.
My set up ten years ago cost just over a thousand dollars for the things I use now. All my photos of micro minerals have been with this system.
I have improved the lighting and am still replacing some of my older and bad photos because of poor lighting.
It was a long time dream to be able to do this and I am so happy that I can share my passion with others.
Thanks again.
21st Jun 2019 13:47 UTCChris Rayburn
Oh, God, I'm speaking millennial!
23rd Jun 2019 20:07 UTCRolf Luetcke Expert
Glad you liked that mimetite going through the wulfenite, one of our favorite micro minerals. That piece was a gift from a friend, who never saw what was on it, didn't care for micro minerals, his loss, our gain.
24th Jun 2019 07:30 UTCCostas Constantinides
24th Jun 2019 07:32 UTCCostas Constantinides
24th Jun 2019 13:34 UTCRolf Luetcke Expert
Very nice photo of the metallics in the quartz. I have a number of those in tiny form but have never been able to figure just what the metal is. It is always so bright encased in the quartz, no tarnish, it always makes me wonder what mineral it is.
Thanks for posting.
24th Jun 2019 13:36 UTCRolf Luetcke Expert
Very nice photo of the metallics in the quartz. I have a number of those in tiny form but have never been able to figure just what the metal is. It is always so bright encased in the quartz, no tarnish, it always makes me wonder what mineral it is.
Thanks for posting.
24th Jun 2019 15:17 UTCEch Noch
25th Jun 2019 07:37 UTCCostas Constantinides
will post result.
25th Jun 2019 16:32 UTCEch Noch
26th Jun 2019 17:14 UTCTony Charlton
26th Jun 2019 19:55 UTCEch Noch
26th Jun 2019 22:55 UTCTony Charlton
27th Jun 2019 08:34 UTCCostas Constantinides
Another image ( as good as I can do) ,i thought there was the look of molybdenite there.
27th Jun 2019 15:58 UTCRolf Luetcke Expert
I have a number of similar ones to yours and my first thought is molybdenite also but there is generally none in the host rock so I think it must be another mineral. It was mentioned earlier about hematite being identified in a test and the one factor I keep in mind is that when the material was encased in the quartz it was totally fresh and has no tarnish or alteration and I believe one would have to analyze most to say just which mineral it is. The only telling factor would be what metallic is in the host rock outside of any encasement. I have found quite a few and all in tiny blebs inside the quartz, pretty much always very bright, "moly" looking material.
Thank you all for posting.
29th Jun 2019 00:06 UTCTine108 (Christine Boose)
29th Jun 2019 20:22 UTCRolf Luetcke Expert
Glad you like mindat, wish it had been around when I started with minerals, could have learned about minerals so much easier but it was fun working with books and magazines.
Enjoy getting to know the site.
11th Jul 2019 04:57 UTCEch Noch
11th Jul 2019 05:22 UTCEch Noch
11th Jul 2019 10:46 UTCEch Noch
11th Jul 2019 14:34 UTCTony Charlton
11th Jul 2019 20:52 UTCEch Noch
25th Jul 2019 21:04 UTCRolf Luetcke Expert
This one is a normally colorless pectolite crystal and it has a mineral I don't have an identification on inside as inclusions.
4th Aug 2019 20:42 UTCRolf Luetcke Expert
In working with the plancheite in our collection today, found several as inclusions in other material. First one is in quartz, second ones are in dioptase.
5th Aug 2019 05:20 UTCEch Noch
6th Aug 2019 02:27 UTCSteven Kuitems Expert
12th Aug 2019 02:01 UTCSteven Kuitems Expert
8th Aug 2019 21:52 UTCKevin Conroy Manager
A striated calcite crystal is sparsely to heavily included with bright red chalcotrichite.
Czar Mine, Copper Queen Mine, Queen Hill, Bisbee, Warren Mining District, Mule Mts, Cochise Co., Arizona, USA
Dimensions: 1.4 cm x .8 cm x .7 cm
9th Aug 2019 13:22 UTCChris Rayburn
9th Aug 2019 14:41 UTCKevin Conroy Manager
10th Aug 2019 12:52 UTCChris Rayburn
11th Aug 2019 16:49 UTCRolf Luetcke Expert
Nice chalcotrichite Kevin. I have a few of those in our collection too.
11th Aug 2019 20:36 UTCDan Owens
12th Aug 2019 00:55 UTCGareth Evans
Synthetic Inclusions
Inclusion in UV-hardened plastic - silica tube containing 1ml of chlorine (99.99%) at 116 PSI.
Inclusion in UV-hardened plastic - silica tube containing 1ml of chlorine (99.99%) at 116 PSI.
14th Aug 2019 12:26 UTCJolyon Ralph Founder
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: April 17, 2024 23:19:30
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: April 17, 2024 23:19:30
Strickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA