Archives

Posted by: Raymond McDougall on 03.29.2020 | Filed under: Latest, Recent Mineral Updates | Comments (0)

I’ve added great new specimens in a new update of pieces from the Steve Szilard Collection (click here).  This update includes fine mineral specimens from all over the world.

Steve Szilard is a well-known and highly respected Canadian mineral collector who began collecting in 1982. It may strike a chord with many of you that one of his first two mineral books was the Peterson Field Guide to Rocks and Minerals by Fred Pough – that was certainly true for me too (and my own copy sure looks as well used as it has been!). Steve is a skilled and accomplished field collector, having collected extensively in Ontario, as well as in almost all Canadian provinces and across the United States. Having travelled the world acquiring minerals in many countries, he has also attended many mineral shows – in particular, he has attended the Rochester Mineralogical Symposium for almost 30 years. Steve has a long record of mineral community involvement and contribution, having been with the Walker Mineralogical Club in Toronto since 1985 (and a member of the executive for many of the years since then) – he has also been a member of the Scarborough Gem and Mineral Club, the Kawartha Rock and Fossil Club and the Canadian Micro Mineral Association. As you might expect, given his mineral collecting career, Steve is incredibly knowledgeable about minerals and many mineral-related subjects. He has always been kind and generous with his knowledge. Steve has enjoyed assisting in the activities of a great organization, the Young Toronto Mineralogists Club, including talks, using binocular microscopes, and field trips. It is my pleasure to be able to share his collection with you.

Anglesite, Galena, Touissit, Touissit - Bou Beker District, Jerada, Oriental, Morocco

Anglesite, Touissit, Touissit – Bou Beker District, Jerada, Oriental, Morocco – 1.8 cm crystal

Arsenopyrite, Muscovite, Yaoganxian Mine, Yizhang Co., Chenzhou Prefecture, Hunan Province, China

Arsenopyrite on Muscovite, Yaoganxian Mine, Yizhang Co., Chenzhou Prefecture, Hunan Province, China – 4.2 cm

Bastnäsite - (Ce), Zagi Mountain, Hameed Abad Kafoor Dneri, Peshawar, Khyber Pakhtunkhwa, Pakistan

 Bastnäsite – (Ce), Zagi Mountain, Hameed Abad Kafoor Dneri, Peshawar,
Khyber Pakhtunkhwa, Pakistan – 2.0 cm

Benitoite, Neptunite, California Gem Mine, Santa Rita Peak, New Idria Mining District, San Benito Co., California, USA

Benitoite, Neptunite, California Gem Mine, Santa Rita Peak, New Idria Mining District,
San Benito Co., California, USA – 6.6 cm

Brookite, Magnet Cove, Hot Spring Co., Arkansas, USA

Brookite, Magnet Cove, Hot Spring Co., Arkansas, USA

Calcite, Celadonite, Irai, Rio Grande do Sul, Brazil

Calcite with Celadonite, Irai, Rio Grande do Sul, Brazil – 11.3 cm

Calcite, Celadonite, Irai, Rio Grande do Sul, Brazil

Same specimen as above, under UV light

Calcite, Irai, Rio Grande do Sul, Brazil

Calcite, Irai, Rio Grande do Sul, Brazil – 9.7 cm

Calcite, Irai, Rio Grande do Sul, Brazil

 Same specimen as above, under UV light

Calcite (Twinned), Elmwood Mine, Carthage, Smith Co., Tennessee, USA

Calcite (Twinned), Elmwood Mine, Carthage, Smith Co., Tennessee, USA – 7.3 cm

Calcite, Hematite, Santa Eulalia Mining District, Chihuahua, Mexico

Calcite, Santa Eulalia Mining District, Chihuahua, Mexico – 11.2 cm
Illuminated by UV light

Cassiterite, Viloco Mine, Loayza Province, La Paz, Bolivia

Cassiterite, Viloco Mine, Loayza Province, La Paz, Bolivia
Field of view 3.0 cm

Celestine, Sulphur, Machow Mine, Tarnobrzeg City Co., PolandCelestine on Sulphur, Machow Mine, Tarnobrzeg City Co., Poland – 8.1 cm

Celestine, Sulphur, Machow Mine, Tarnobrzeg City Co., Poland

Same specimen as above, under UV light

Celestine, Sulphur, Machow Mine, Tarnobrzeg City Co., PolandSame specimen as above, exhibiting phosphorescence after UV illumination

Celestine, Sulphur, Machow Mine, Tarnobrzeg City Co., Poland

Celestine, Sulphur, Machow Mine, Tarnobrzeg City Co., Poland
Field of view 3.5 cm

Celestine, Sulphur, Machow Mine, Tarnobrzeg City Co., Poland Celestine on Sulphur, Machow Mine, Tarnobrzeg City Co., Poland
Field of view 3.0 cm

Cerussite, Barite, Les Dalles Mine, Mibladen Mining District, Midelt, Morocco

Cerussite on Barite, Les Dalles Mine, Mibladen Mining District, Midelt, Morocco – 7.1 cm

Corundum var. Sapphire, Ratnapura, Ratnapura District, Sabaragamuwa Province, Sri LankaCorundum var. Sapphire, Ratnapura, Ratnapura District, Sabaragamuwa Province, Sri Lanka – 4.2 cm

Cuprite, Chrysocolla, Mashamba West Mine, Kolwezi Mining District, Lualaba, Democratic Republic of the Congo Cuprite on Chrysocolla, Mashamba West Mine, Kolwezi Mining District, Lualaba,
Democratic Republic of the Congo

Dioptase, Altyn-Tyube Deposit, Kirghiz Steppes, Karagandy Province, Kazakhstan

Dioptase, Altyn-Tyube Deposit, Kirghiz Steppes, Karagandy Province, Kazakhstan – 4.8 cm

Dioptase, Altyn-Tyube Deposit, Kirghiz Steppes, Karagandy Province, Kazakhstan

Dioptase, Altyn-Tyube Deposit, Kirghiz Steppes, Karagandy Province, Kazakhstan – 2.7 cm

Elbaite Tourmaline, Chiar Mine, Sao Jose da Safira, Minas Gerais, Brazil

Elbaite, Chiar Mine, Sao Jose da Safira, Minas Gerais, Brazil – 3.8 cm

Epidote, Prince of Wales Island, Ketchikan Mining District, Alaska, USA

Epidote (twinned), Prince of Wales Island, Ketchikan Mining District, Alaska, USA – 4.2 cm

Ettringite, N'Chwaning II Mine, Kalahari Manganese Fields, Northern Cape Province, South Africa

Ettringite, N’Chwaning II Mine, Kalahari Manganese Fields, Northern Cape Province, South Africa – 4.3 cm

Fluorite, Sphalerite, Annabel Lee Mine, Hardin Co., Illinois, USA

Fluorite on sphalerite, Annabel Lee Mine, Hardin Co., Illinois, USA

Fluorite, Xianghualing Mine, Linwu Co., Chenzhou, Hunan, China

Fluorite, Xianghualing Mine, Linwu Co., Chenzhou, Hunan, China – 10.5 cm

Fluorite, Xianghualing Mine, Linwu Co., Chenzhou, Hunan, China

Same specimen as above, under UV light

Gypsum var. selenite with halite, Salinas de Otuma, Paracas, Pisco, Ica Dept., Peru

Gypsum var. selenite with halite, Salinas de Otuma, Paracas, Pisco, Ica Dept., Peru – 5.0 cm

Gypsum var. selenite with halite, Salinas de Otuma, Paracas, Pisco, Ica Dept., Peru

Gypsum var. Selenite, Santa Eulalia Mining District, Chihuahua, Mexico – 8.1 cm

Gypsum var. Selenite, Naica, Saucillo Municipality, Chihuahua, Mexico

Gypsum var. Selenite, Naica, Saucillo Municipality, Chihuahua, Mexico – 11.1 cm

Hemimorphite, Santa Eulalia Mining District, Chihuahua, Mexico

Hemimorphite, Santa Eulalia Mining District, Chihuahua, Mexico

Malachite, Chrysocolla, Mashamba West Mine, Kolwezi Mining District, Lualaba, Democratic Republic of the Congo

Malachite on Chrysocolla, Mashamba West Mine, Kolwezi Mining District, Lualaba,
Democratic Republic of the Congo

Pyrite, Canutillos Mine, Machamarcha District, Potosí, Bolivia

Pyrite, Canutillos Mine, Machamarcha District, Potosí, Bolivia

Pyromorphite, Daoping Mine, Gongcheng Co., Guanxi Zhuang A.R., China

Pyromorphite, Daoping Mine, Gongcheng Co., Guanxi Zhuang A.R., China – 3.3 cm

Pyrrhotite, Dal'negorsk, Primorskiy Kray, Russia

Pyrrhotite, Dal’negorsk, Primorskiy Kray, Russia – 5.7 cm

Smithsonite, Kelly Mine, Magdalena, Socorro Co., New Mexico, USA

Smithsonite, Kelly Mine, Magdalena, Socorro Co., New Mexico, USA – 7.7 cm

Sphalerite, Dashkesan Deposit, Maly Caucasus, Koshkarchai Valley, Azerbaijan

Sphalerite, Dashkesan Deposit, Maly Caucasus, Koshkarchai Valley, Azerbaijan – 6.3 cm

Vanadinite, Taouz, Errachidia Province, Morocco

Vanadinite, Taouz, Errachidia Province, Morocco

Vivianite, Tomokoni Mine, Canutillos Subdistrict, Machacamarcha District, Potosí, Bolivia

Vivianite, Tomokoni Mine, Canutillos Subdistrict, Machacamarcha District, Potosí, Bolivia – 4.3 cm

Zircon, Astor Valley, Gilgit-Baltistan, Pakistan

Zircon, Astor Valley, Gilgit-Baltistan, Pakistan – 4.3 cm

Posted by: Raymond McDougall on 11.18.2017 | Filed under: Latest, Recent Mineral Updates | Comments (0)

 

I’ve posted a number of beautiful elbaite crystals from Afghanistan and Pakistan in this Tourmaline Update (click here). Several of the tourmalines from Stak Nala were very recently collected – I acquired them from a family that is mining the specimens.

Elbaite Tourmaline, Paprok, Afghanistan

 

Elbaite Tourmaline, Paprok, Afghanistan – 5.8 cm

Elbaite Tourmaline on Albite, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan

 

Elbaite Tourmaline on Albite, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan – 6.8 cm

Elbaite Tourmaline on Albite, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan

The same specimen as above, photographed in ultraviolet light

Elbaite Tourmaline with Muscovite, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan

Elbaite Tourmaline with Muscovite, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan – 4.8 cm

Elbaite Tourmaline with Albite, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan

Elbaite Tourmaline with Albite, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan – 4.2 cm

Elbaite Tourmaline with Albite, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan

Elbaite Tourmaline with Albite, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan – 4.6 cm

Elbaite Tourmaline with Albite, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan

Elbaite Tourmaline with Albite, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan – 4.2 cm

Elbaite Tourmaline with Albite, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan

Elbaite Tourmaline with Albite, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan – 3.8 cm

Elbaite Tourmaline with Albite, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan

Elbaite Tourmaline with Albite, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan – 4.2 cm

Elbaite Tourmaline with Albite, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan

Elbaite Tourmaline with Albite, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan – 3.9 cm

Posted by: Raymond McDougall on 11.15.2015 | Filed under: Latest, Recent Mineral Updates | Comments (0)

 

I’ve posted a new Brazil Update (click here), with superb, diverse specimens.

From the world famous morganite finds at the Urucum Mine, this crystal is likely from the 1973 pocket.

Beryl, var. Morganite, Urucum Mine,  Galileia, Minas Gerais, BrazillBeryl, var. Morganite, Urucum Mine, Galileia, Minas Gerais, Brazil – 7.9 cm

A one-of-a-kind specimen, this aqua-colours montebrasite crystal was found in a pocket in the 1970s. Most of the pocket material was etched and did not exhibit crystal faces.

Montebrasite, Lavra da Ilha, Taquaral, Itinga, Minas Gerais, BrazilMontebrasite, Lavra da Ilha, Taquaral, Itinga, Minas Gerais, Brazil – 3.9 cm

From a new recent find, a small pocket at Novo Horizonte produced a small number of remarkable crystals, sold to me under the label “synchysite”. Subsequent analysis by Don Doell has confirmed more about their identity. Having conducted semi-quantitative EDS at SGS Labs, Don found that these are in fact phosphate mineralization, and they are likely a combination of rhabdophane-(La), rhabdophane-(Ce) and possibly including monazite-(Ce). They appear to be pseudomorphs after a REE carbonate, probably in the parisite group, given that parisite-(La) has been found at Novo Horizonte in crystals with a similar aspect and appearance, at a similar time. They could also be after bastnasite-(La), which has been described from the locality. For now, I’m labelling them rhabdophane, pseudomorph after parisite, with the proviso that the above is the technically closest identification information to date. Thanks very much to Don for this analysis!

Synchysite, Novo Horizonte, Bahia, BrazilRhabdophane pseudomorph after Parisite, Novo Horizonte, Bahia, Brazil – 3.4 cm

Synchysite, Novo Horizonte, Bahia, BrazilRhabdophane pseudomorph after Parisite, Novo Horizonte, Bahia, Brazil – 2.6 cm

Synchysite, Novo Horizonte, Bahia, BrazilRhabdophane pseudomorph after Parisite, Novo Horizonte, Bahia, Brazil – 2.0 cm


Synchysite, Novo Horizonte, Bahia, Brazil Rhabdophane pseudomorph after Parisite – 2.4 cm

Also from Novo Horizonte, a tabular crystal of rutilated quartz, in superb condition and with bright prismatic golden rutile crystals:

Rutilated Quartz, Novo Horizonte, Bahia, Brazil

Rutilated Quartz, Novo Horizonte, Bahia, Brazil – 7.6 cm

From Brumado, excellent pleochroic crystals of uvite tourmaline, exhibiting purple hues at certain angles and greenish hues when viewed from other angles. The first two photographs below are views of the same uvite crystal from different viewing angles.

Uvite Tourmaline (Pleochroic), Magnesite,  Pombas Mine, Brumado (Bom Jesus dos Meiras), Bahia, BrazilUvite Tourmaline (Pleochroic), Magnesite, Pombas Mine, Brumado (Bom Jesus dos Meiras), Bahia, Brazil
Crystal 0.8 cm

Uvite Tourmaline (Pleochroic), Magnesite,  Pombas Mine, Brumado (Bom Jesus dos Meiras), Bahia, BrazilUvite Tourmaline (Pleochroic), Magnesite, Pombas Mine, Brumado (Bom Jesus dos Meiras), Bahia, Brazil
Same crystal as prior photo

Uvite Tourmaline (Pleochroic), Magnesite,  Pombas Mine, Brumado (Bom Jesus dos Meiras), Bahia, BrazilUvite Tourmaline (Pleochroic), Magnesite, Pombas Mine, Brumado (Bom Jesus dos Meiras), Bahia, Brazil
5.4 cm

Uvite Tourmaline (Pleochroic), Magnesite,  Pombas Mine, Brumado (Bom Jesus dos Meiras), Bahia, Brazil Uvite Tourmaline (Pleochroic), Magnesite, Pombas Mine, Brumado (Bom Jesus dos Meiras), Bahia, Brazil
Crystal 1.2 cm

Another unusual tourmaline for Brumado, green dravite crystals are quite uncommon.

Dravite Tourmaline, Brumado (Bom Jesus dos Meiras), Bahia, Brazil

Dravite Tourmaline, Magnesite, Brumado (Bom Jesus dos Meiras), Bahia, Brazil – 1.5 cm crystal

The update also includes specimens from other well-known finds and localities

Elbaite Tourmaline, Barra do Salinas, Coronel Murta, Minas Gerais, Brazil Elbaite Tourmaline, Barra do Salinas, Coronel Murta, Minas Gerais, Brazil – 2.9 cm

Brazilianite, Telirio Claim, Linoplois, Divino das Laranjeiras, Brazil

Brazilianite, Telirio Claim, Linoplois, Divino das Laranjeiras, Brazil
Crystals to 3 cm

Fluorapatite, Bertrandite, Faria Mine, Golconda District, Governador Valadares, Minas Gerais, Brazil

Fluorapatite, Bertrandite, Faria Mine, Golconda District, Governador Valadares, Minas Gerais, Brazil
Crystal 1.5 cm

Hematite (Iron Rose). Coluna Mine, Miguel Burnier District, Ouro Preto, Minas Gerais, Brazil

Hematite (Iron Rose). Coluna Mine, Miguel Burnier District, Ouro Preto, Minas Gerais, Brazil
Field of view approximately 4 cm

Hydroxylherderite, Morro Redondo Mine, Coronel Murta, Minas Gerais, Brazil

Hydroxylherderite, Morro Redondo Mine, Coronel Murta, Minas Gerais, Brazil – 5.3 cm