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| A general guide for using the Forum with some rules and tips |
| Search found 190 matches |
| Author | Message |
|---|---|
 Topic: Stay at home - Coronavirus / Covid-19 |
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| Joseph DOliveira Replies: 314 Views: 41505 |
 Forum: National Library of Spain / Biblioteca Nacional de España (BNE) and FMF Posted: May 25, 2020 19:48 Subject: Re: Stay at home - Coronavirus / Covid-19 |
| Spring has sprung here in the North. No social distancing for these beauties. | |
| Topic: This rock has me stumped! |
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| Joseph DOliveira Replies: 7 Views: 531 |
Forum: FOR BEGINNERS: What is it? Where is it from? Posted: May 12, 2020 21:14 Subject: Re: This rock has me stumped! |
| I agree with Bob, it looks like a piece of limestone. The orbicle shape and grooves give the appearance that the stone was worked. It may be possible that you have a native artifact of some kind. | |
| Topic: Stay at home - Coronavirus / Covid-19 |
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| Joseph DOliveira Replies: 314 Views: 41505 |
Forum: National Library of Spain / Biblioteca Nacional de España (BNE) and FMF Posted: May 08, 2020 13:29 Subject: Re: Stay at home - Coronavirus / Covid-19 |
| Woke up this morning to a fresh blanket of snow, this makes it much easier to stay home and isolate. | |
| Topic: Collection of Joseph D'Oliveira |
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| Joseph DOliveira Replies: 84 Views: 94638 |
Forum: Collection photos and Collector's page Posted: Apr 30, 2020 16:07 Subject: Re: Collection of Joseph D'Oliveira |
| Jordi,
I have had an opportunity to do some further work on these specimens and from what I can visually ascertain, the titanite crystals grow on the ilmenite pseudo's. The ilmenite/rutile appears to ... |
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| Topic: Manufactured or natural? |
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| Joseph DOliveira Replies: 8 Views: 3138 |
Forum: What is it? - Where is it from? Posted: Apr 21, 2020 11:08 Subject: Re: Manufactured or natural? |
| Thanks Don, I do a presentation for interested rock & mineral clubs on mineral fakes and manipulations, so I had planned to purchase that specimen for display during my presentations in any event. ... | |
| Topic: Manufactured or natural? |
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| Joseph DOliveira Replies: 8 Views: 3138 |
Forum: What is it? - Where is it from? Posted: Apr 21, 2020 08:54 Subject: Re: Manufactured or natural? |
| Looks like I finally have some resolution to the issue of whether the sulphur is natural or manufactured. I contacted a Chinese mineral dealer that I frequently do business with in Tucson and he shed ... | |
| Topic: Manufactured or natural? |
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| Joseph DOliveira Replies: 8 Views: 3138 |
Forum: What is it? - Where is it from? Posted: Apr 18, 2020 17:14 Subject: Manufactured or natural? |
| I purchased this specimen in Tucson this year and the dealer confided in me that he was unsure of the provenance of the piece. He had many more crystallized pieces that were significantly more expensi ... | |
| Topic: Collection of Joseph D'Oliveira |
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| Joseph DOliveira Replies: 84 Views: 94638 |
Forum: Collection photos and Collector's page Posted: Apr 18, 2020 17:00 Subject: Re: Collection of Joseph D'Oliveira |
| The titanite crystals grow on the blades of ilmenite and almost completely cover them. I have other pieces that have significantly more ilmenite but they are not as aesthetic. The ilmenite appears as ... | |
| Topic: Collection of Joseph D'Oliveira |
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| Joseph DOliveira Replies: 84 Views: 94638 |
Forum: Collection photos and Collector's page Posted: Apr 18, 2020 15:45 Subject: Re: Collection of Joseph D'Oliveira |
| It's been a while since I have posted but I am finally through my Tucson related work while still isolating at home. | |
| Topic: Mining objects. |
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| Joseph DOliveira Replies: 28 Views: 7240 |
Forum: The histories behind mineral specimens Posted: Apr 13, 2020 21:31 Subject: Re: Mining objects. |
| Interesting to see the gold paint on the drill bit, as different colours of paint were used to identify the various sizes (diameter) of the bits. After graduation, I worked in a mine as a jackleg dril ... | |
| Topic: Mining objects. |
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| Joseph DOliveira Replies: 28 Views: 7240 |
Forum: The histories behind mineral specimens Posted: Apr 13, 2020 09:21 Subject: Re: Mining objects. |
| Here is one of my special pieces, it is a Pajari (Tropari) instrument used to determine the dip and direction of diamond drill holes. It has a gimballed compass sphere that encases a watch works. The ... | |
| Topic: Mining objects. |
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| Joseph DOliveira Replies: 28 Views: 7240 |
Forum: The histories behind mineral specimens Posted: Apr 12, 2020 19:48 Subject: Re: Mining objects. |
| While not a true mining object, I thought I would share this sculpture. It is called "The Geologist", and depicts a German geologist in full attire, complete with rock sample in hand. It is ... | |
| Topic: Don Lum Collection |
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| Joseph DOliveira Replies: 1572 Views: 1147283 |
Forum: Collection photos and Collector's page Posted: Apr 09, 2020 10:25 Subject: Re: Don Lum Collection |
| This rhodochrosite brings back memories for me. Back in the 90's while working in Wyoming, I took a trip to Butte, Montana, the goal was to collect a sample of covellite and rhodochrosite from the min ... | |
| Topic: Stay at home - Coronavirus / Covid-19 |
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| Joseph DOliveira Replies: 314 Views: 41505 |
Forum: National Library of Spain / Biblioteca Nacional de España (BNE) and FMF Posted: Mar 27, 2020 12:19 Subject: Re: Stay at home - Coronavirus / Covid-19 |
| I'm partial to the Jalapeño & Cheddar variety of Cheez Its myself, unfortunately they are not available in Canada. Both of your selections are great choices. | |
| Topic: Don Lum Collection |
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| Joseph DOliveira Replies: 1572 Views: 1147283 |
Forum: Collection photos and Collector's page Posted: Mar 26, 2020 08:59 Subject: Re: Don Lum Collection |
| All I can say is WOW. What an incredible copper specimen. Love seeing your collection posts Don. | |
| Topic: Stay at home - Coronavirus / Covid-19 |
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| Joseph DOliveira Replies: 314 Views: 41505 |
Forum: National Library of Spain / Biblioteca Nacional de España (BNE) and FMF Posted: Mar 20, 2020 21:30 Subject: Re: Stay at home - Coronavirus / Covid-19 |
| Just made it back to our home in Canada from Tucson and started our voluntary two week self-isolation period, as requested by Health Canada. It takes 4 long days of driving to get here, especially sin ... | |
| Topic: Is Mineral Collecting becoming too Superficial or has it always been so. |
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| Joseph DOliveira Replies: 15 Views: 7741 |
Forum: Off-Topic and Introductions Posted: Mar 14, 2020 00:54 Subject: Re: Is Mineral Collecting becoming too Superficial or has it always been so. |
| I guess I'll wade into the discussion as I sit here in Tucson hoping they will not shut the US/Canada border before I return home at the end of the month.
For many of us the hobby started at a youn ... |
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| Topic: Tucson Show 2020 |
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| Joseph DOliveira Replies: 104 Views: 45940 |
Forum: News about shows Posted: Feb 09, 2020 17:38 Subject: Re: Tucson Show 2020 |
| Hasn't stopped me from visiting the Chinese dealers. I figure if the incubation period is 4-7 days, anyone there now is long past that and shouldn't be a concern.
Has the corona virus been an issue ... |
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| Topic: Tucson Show 2020 |
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| Joseph DOliveira Replies: 104 Views: 45940 |
Forum: News about shows Posted: Jan 27, 2020 23:59 Subject: Re: Tucson Show 2020 |
| Here is a large specimen of the fluorite on matrix found at the Red Lion Hotel. | |
| Topic: Tucson Show 2020 |
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| Joseph DOliveira Replies: 104 Views: 45940 |
Forum: News about shows Posted: Jan 14, 2020 23:39 Subject: Re: Tucson Show 2020 |
| The end of on era as the past Executive Inn & Suites, now the Fortuna Inn & suites is being torn down. Once the hub of the Tucson show for many of us, the hotel has slowly deteriorated as the ... | |
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