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Posted by: Raymond McDougall on 01.21.2020 | Filed under: Latest, Recent Mineral Updates | Comments (0)

 

I’ve posted the fourth in a series of updates with superb specimens from John S. White’s collection (click here).

Most of you will likely know a bit about John, given that among his many accomplishments in the mineral world he is the founder of the Mineralogical Record, former curator of the U.S. National Mineral and Gem Collection at the Smithsonian Institution and author of two books and over 200 articles. I’ve written a short post about him with some great photos – hope you enjoy it! (click here) .

Spodumene, var. Kunzite, Urucum Mine, Galileia, Minas Gerais, Brazil

Spodumene, var. Kunzite, Urucum Mine, Galileia, Minas Gerais, Brazil – 7.7 cm

Stibnite and Calcite, Tongren Prefecture, Guizhou, China

Stibnite and Calcite, Tongren Prefecture, Guizhou, China – 6.5 cm

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

Elbaite Tourmaline, Albite, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan
Field of view 5.0 cm

Prehnite, Calcite, Upper New Street Quarry, Paterson, Passaic Co., New Jersey, USA

Prehnite, Calcite, Upper New Street Quarry, Paterson, Passaic Co., New Jersey, US – 9.8 cm

Prehnite, Merelani Hills, Lelatima Mountains, Manyara, Tanzania

Prehnite, Merelani Hills, Lelatima Mountains, Manyara, Tanzania – 5.0 cm

Prehnite, Merelani Hills, Lelatima Mountains, Manyara, Tanzania

Prehnite, Merelani Hills, Lelatima Mountains, Manyara, Tanzania – 3.6 cm

Rutile and Hematite in Quartz, Novo Horizonte, Bahia, Brazil

Rutile epitactic on hematite in quartz, Novo Horizonte, Bahia, Brazil
Field of view 1.6 cm

Spessartine Garnet, Quartz. Tongbei, Yunxiao Co., Fujian Province, China

Spessartine Garnet with smoky quartz and opal, Tongbei, Yunxiao Co., Fujian Province, China
Field of view 4.0 cm

Sphalerite, Quartz, Madan Ore Field, Rhodope Mountains, Smolyan Oblast, Bulgaria

Sphalerite with quartz, Madan Ore Field, Rhodope Mountains, Smolyan Oblast, Bulgaria
Field of view  5.0 cm
Stellerite, Maharashtra, India

Stellerite, Maharashtra, India – 7.7 cm

Vanadinite, Mibladen Mining District, Midelt, Khenifra, MoroccoVanadinite, Mibladen Mining District, Midelt, Khenifra, Morocco – 4.4 cm

Jeffrey Mine, Asbestos, Estrie, Quebec, Canada

 Jeffrey Mine, Asbestos, Estrie, Quebec, Canada

Wulfenite, Ahumada Mine, Los Lamentos Mtns., Chihuahua, Mexico

Wulfenite, Ahumada Mine, Los Lamentos Mtns., Chihuahua, Mexico – 8.5 cm

Wurtzite, epitactic Sphalerite, Merelani Hills, Lelatima Mountains, Manyara, Tanzania

Wurtzite, epitactic Sphalerite, Merelani Hills, Lelatima Mountains, Manyara, Tanzania – 1.6 cm

Posted by: Raymond McDougall on 10.30.2019 | Filed under: Latest, Recent Mineral Updates | Comments (0)


I’ve posted beautiful new natrolite specimens in this Mont Saint-Hilaire Update (click here). These are from a relatively recent pocket – they are great crystals with sharp, glassy pyramid faces and they fluoresce bright green under short-wave ultraviolet light.

These are pairs of photos of specimens, (1) in normal lighting and (2) under short-wave ultraviolet light.

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite (fluorescent), Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada – 5.9 cm

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada – 7.6cm

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada – 10.9 cm

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada – 7.3 cm

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada – 4.5 cm

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada – 7.6 cm

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada – 6.8 cm

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada – 5.5 cm

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada – 5.2 cm

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada – 6.0 cm

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada – 6.7 cm

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada – 3.5 cm

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada – 6.1 cm

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada – 5.1 cm

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada – 6.4 cm

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada – 4.7 cm

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada – 4.3 cm

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada – 3.8 cm

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada – 4.7 cm

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada

Natrolite, Mont Saint-Hilaire, Quebec, Canada – 3.2 cm

Posted by: Raymond McDougall on 06.07.2016 | Filed under: Latest, Recent Mineral Updates | Comments (0)

 

I’ve added some great specimens in this Mont Saint-Hilaire Update (click here). One of the world’s great mineral localities, with over 400 species, the quarry has been closed to collecting since 2007 (with isolated exceptions that have not produced specimens in any quantity). The specimens in this update are from finds dated from 1988 to 2007.

One of the most remarkable aspects of collecting at Mont Saint-Hilaire is that no two occurrences are the same – the mineralized zones and pockets are each different, with varied mineral assemblages and crystal habits. This selection of specimens represents several different finds, each of which was unique.

Serandite, Mont Saint-Hilaire, Quebec, Canada

Serandite, Mont Saint-Hilaire, Quebec, Canada – 3.4 cm

Serandite, Mont Saint-Hilaire, Quebec, Canada

Serandite, Mont Saint-Hilaire, Quebec, Canada – 3.4 cm

Serandite, Mont Saint-Hilaire, Quebec, Canada

Serandite, Mont Saint-Hilaire, Quebec, Canada – 3.2 cm

Analcime pseudomorph after analcime, Mont Saint-Hilaire, Quebec, Canada

Analcime pseudomorph after analcime, Mont Saint-Hilaire, Quebec, Canada – 3.7 cm

Manganoneptunite on catapleiite pseudomorph after sodalite, Mont Saint-Hilaire, Quebec, Canada

Manganoneptunite on catapleiite pseudomorph after sodalite, Mont Saint-Hilaire, Quebec, Canada
Field of view 1.0 cm

Rhodochrosite (twinned), Mont Saint-Hilaire, Quebec, Canada

Rhodochrosite (twinned), Mont Saint-Hilaire, Quebec, Canada – 4.5 cm

Analcime on microcline, Mont Saint-Hilaire, Quebec, Canada

Analcime on microcline, Mont Saint-Hilaire, Quebec, Canada – 4.6 cm

Serandite with epidiymite, Mont Saint-Hilaire, Quebec, Canada

Serandite with epididymite, Mont Saint-Hilaire, Quebec, Canada – 7.3 cm

Sodalite, var. hackmanite, pink albite, Mont Saint-Hilaire, Quebec, Canada

Sodalite, var. hackmanite with pink albite coating, Mont Saint-Hilaire, Quebec, Canada – 4.4 cm

Sodalite, var. hackmanite with pink albite coating, Mont Saint-Hilaire, Quebec, Canada

Sodalite, var. hackmanite with albite coating, Mont Saint-Hilaire, Quebec, Canada – 2.5 cm

Narsarsukite, Mont Saint-Hilaire, Quebec, Canada

Narsarsukite, Mont Saint-Hilaire, Quebec, Canada – 1.2 cm crystal

Leucophanite, Mont Saint-Hilaire, Quebec, Canada

Leucophanite, Mont Saint-Hilaire, Quebec, Canada – 2.4 cm

Analcime, Mont Saint-Hilaire, Quebec, Canada

Analcime, Mont Saint-Hilaire, Quebec, Canada – 3.6 cm

Rhodochrosite pseudomorph after serandite, Mont Saint-Hilaire, Quebec, Canada

Rhodochrosite pseudomorph after serandite, Mont Saint-Hilaire, Quebec, Canada – 3.3 cm

Quartz with albite and gaidonnayite, Mont Saint-Hilaire, Quebec, Canada

Quartz with albite and gaidonnayite, Mont Saint-Hilaire, Quebec, Canada – 6.3 cm

Quartz with albite and gaidonnayite, Mont Saint-Hilaire, Quebec, Canada

Quartz with albite and gaidonnayite, Mont Saint-Hilaire, Quebec, Canada – 4.2 cm

Quartz, Mont Saint-Hilaire, Quebec, Canada

Quartz, Mont Saint-Hilaire, Quebec, Canada – 3.2 cm

Elpidite, Mont Saint-Hilaire, Quebec, Canada

Elpidite, Mont Saint-Hilaire, Quebec, Canada – 3.2 cm

Elpidite, Mont Saint-Hilaire, Quebec, Canada

Elpidite, Mont Saint-Hilaire, Quebec, Canada – 4.5 cm

Posted by: Raymond McDougall on 01.05.2015 | Filed under: Latest, Recent Mineral Updates | Comments (0)

I have added a group of excellent new specimens in the Canadian Titanite Update (click here).  These crystals are remarkable for their quality and sharpness.

Titanite is among the most highly-prized minerals in the Bancroft Area and other regions of the Grenville Province. And yet, truly excellent quality specimens are elusive, both locally and on the international market. One reason is that titanite is very brittle. Its wedge-shaped crystals feature long, thin edges that are easily broken, cracked and chipped, by natural processes and also by collectors. Another issue is that titanite crystals from the Grenville are very often incompletely formed or heavily contacted, having often formed contemporaneously with other neighbouring minerals.

The crystals in this update have a black appearance, but on close inspection of the crystal edges under bright light you can see that they are in fact the deepest reddish-brown colour.

Titanite, Quebec, Canada

Titanite, Zec Bras-Coupé-Désert, Moncerf-Lytton, Outaouais, Quebec, Canada – 5.5 cm

 Titanite, Quebec, Canada

Titanite, Zec Bras-Coupé-Désert, Moncerf-Lytton, Outaouais, Quebec, Canada – 3.4 cm

Titanite, Quebec, Canada

Titanite, Zec Bras-Coupé-Désert, Moncerf-Lytton, Outaouais, Quebec, Canada – 6.5 cm