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Posted by: Raymond McDougall on 09.19.2019 | Filed under: Latest, Recent Mineral Updates | Comments (0)

I’ve posted the second 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)

Chabazite, Stilbite, Pune District, Maharashtra, India

 Chabazite on Stilbite, Road cut at Bavdhan, Pune District, Maharashtra, India – 6.2 cm

Elbaite Tourmaline, Momeik Township, Kyaukme District, Shan, Myanmar

Elbaite Tourmaline, Momeik Township, Kyaukme District, Shan, Myanmar – 5.4 cm

Epidote, Tormiq, Gilgit-Baltistan Road, N.A., PakistanEpidote, Tormiq, Gilgit-Baltistan Road, N.A., Pakistan – 4.3 cm

Epidote, Hachupa, Shigar District, Gilgit-Baltistan, Pakistan Epidote, Hachupa, Shigar District, Gilgit-Baltistan, Pakistan – 3.5 cm

Epidote, Maldeen, Ras Koh Mtns., Kharan District, Balochistan, Pakistan

Epidote, Maldeen, Ras Koh Mtns., Kharan District, Balochistan, Pakistan – 5.4 cm

Fluorapatite, Panasqueira Mines, Covillhã, Castello Branco, Portugal

Fluorapatite, Panasqueira Mines, Covillhã, Castello Branco, Portugal – 3.2 cm

Fluorapatite, Panasqueira Mines, Covillhã, Castello Branco, Portugal

Same specimen as above, under ultraviolet light

Fluorapatite, Kunar, Afghanistan

Fluorapatite, Kunar, Afghanistan – 6.5 cm

Fluorapatite, Kunar, Afghanistan

Same specimen as above, under ultraviolet light

Fluorapophyllite, 	Jalgaon, Maharashtra, India

 Fluorapophyllite, Jalgaon, Maharashtra, India – 7.3 cm

Fluorite on Quartz, Huanggang Mines, Hexigten Banner, Ulanhad, Inner Mongolia A.R., China

Fluorite on Quartz, Huanggang Mines, Hexigten Banner, Ulanhad, Inner Mongolia A.R., China – 10.8 cm

Hematite pseudomorph after magnetite, Payún Volcano, Altiplano de Payún Matru, Mendoza, Argentina

Hematite pseudomorph after magnetite, Payún Volcano, Altiplano de Payún Matru, Mendoza, Argentina – 5.9 cm

Hematite pseudomorph after magnetite, Payún Volcano, Altiplano de Payún Matru, Mendoza, Argentina

Hematite pseudomorph after magnetite, Payún Volcano, Altiplano de Payún Matru, Mendoza, Argentina – 6.1 cm

Hematite with Rutile, Novo Horizonte, Bahia, Brazil

Hematite with Rutile, Novo Horizonte, Bahia, Brazil – 4.5 cm

Hubnerite and quartz, Mundo Nuevo Mine, Huamachuco, Sanchez Carrion, La Libertad Dept., Peru

Hubnerite and quartz, Mundo Nuevo Mine, Huamachuco, Sanchez Carrion, La Libertad Dept., Peru – 7.6 cm

Hydroxyapophyllite, Prehnite, Fairfax Quarry, Centreville, Fairfax Co., Virginia, USA

Hydroxyapophyllite on Prehnite, Fairfax Quarry, Centreville, Fairfax Co., Virginia, USA – 15.1 cm

Ilvaite, Quartz, Huanggang Mines, Hexigten Banner, Ulanhad, Inner Mongolia A.R., China

Ilvaite and quartz, Huanggang Mines, Hexigten Banner, Ulanhad, Inner Mongolia A.R., China – 6.5 cm

Löllingite, Huanggang Mines, Hexigten Banner, Ulanhad, Inner Mongolia A.R., China

Löllingite, Huanggang Mines, Hexigten Banner, Ulanhad, Inner Mongolia A.R., China – 10.2 cm

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

Olmiite, N’Chwaning II Mine, Kalahari Manganese Fields, Northern Cape Province, South Africa – 5.2 cm

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

Same specimen as above, under ultraviolet light

Pentagonite, Wagholi, Pune District, India

Pentagonite, Wagholi, Pune District, India
Field of view 2 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 07.17.2015 | Filed under: Latest, Recent Mineral Updates | Comments (0)

 

I’ve added a small group of beautiful elbaite tourmaline specimens in this Stak Nala Tourmaline Update (click here). Since the 1980s, elbaite toumaline crystals from the pegmatites at Stak Nala, in Pakistan’s Northern Areas, have been known worldwide. Particularly distinctive and prized when associated with albite crystals, these tourmalines are usually colour-zoned, with dark green to black-appearing centre sections, with zones of green, and sometimes pink, blue or colourless zones at the terminations. Often, a closer inspection with strong light or a strong reflective background is needed to fully show these zones. The doubly-terminated crystals from Stak Nala are super examples of hemimorphism (the crystal forms present at one termination are different from those at the other termination). You’ll see that this update also includes one great lepidolite crystal.

I was fortunate to acquire these from a member of the family that mines them.

Elbaite Tourmaline, Stak Nala, Gilgit-Skardu Road, Northern Areas, PakistanElbaite tourmaline with albite and microcline, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan – 4.5 cm

Elbaite tourmaline with albite and microcline, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan - 4.5 cmElbaite tourmaline with albite, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan – 4.8 cm

Elbaite Tourmaline, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan Elbaite tourmaline with albite, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan – 4.4 cm

Elbaite tourmaline with albite and microcline, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan - 4.5 cm

Elbaite tourmaline with albite, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan – 5.8 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 – 4.1 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
Field of view approximately 3 cm

Elbaite tourmaline with albite , Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan

Elbaite tourmaline with albite and microcline, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan – 5.9 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 – 4.6 cm

Lepidolite mica, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan

Lepidolite mica, Stak Nala, Gilgit-Skardu Road, Northern Areas, Pakistan – 4.6 cm