Rare Minerals



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CT514 - Linnaeite $ 50 (=~ £ 36) SOLD
Grüne Gold Mine, Schutzbach, Daaden-Herdorf, Altenkirchen District, Rhineland-Palatinate, Germany
thumbnail - 2 x 1.5 x 1 cm


(click on an image to enlarge)

Linnaeite from Grüne Gold Mine, Schutzbach, Daaden-Herdorf, Altenkirchen District, Rhineland-Palatinate, Germany [db_pics/pics/CT514a.jpg] Linnaeite from Grüne Gold Mine, Schutzbach, Daaden-Herdorf, Altenkirchen District, Rhineland-Palatinate, Germany [db_pics/pics/CT514b.jpg] Linnaeite from Grüne Gold Mine, Schutzbach, Daaden-Herdorf, Altenkirchen District, Rhineland-Palatinate, Germany [db_pics/pics/CT514c.jpg] Linnaeite from Grüne Gold Mine, Schutzbach, Daaden-Herdorf, Altenkirchen District, Rhineland-Palatinate, Germany [db_pics/pics/CT514d.jpg]

Small metallic crystals of Linnaeite on matrix. Linnaeite is a rare cobalt sulfide mineral.


CT529 - Manandonite $ 60 (=~ £ 43)
Manandona River, Sahatany Valley, Madagascar
miniature - 4 x 2.5 x 2 cm


(click on an image to enlarge)

Manandonite from Manandona River, Sahatany Valley, Madagascar [db_pics/pics/CT529a.jpg] Manandonite from Manandona River, Sahatany Valley, Madagascar [db_pics/pics/CT529b.jpg] Manandonite from Manandona River, Sahatany Valley, Madagascar [db_pics/pics/CT529c.jpg] Manandonite from Manandona River, Sahatany Valley, Madagascar [db_pics/pics/CT529d.jpg] Manandonite from Manandona River, Sahatany Valley, Madagascar [db_pics/pics/CT529e.jpg]

Specimen of pearly white Manandonite from the type and only locality for the species, the Antandrokomby pegmatite in Madagascar.


CT530 - Vantasselite $ 40 (=~ £ 29) SOLD
Bihain, Luxembourg Prov., Belgium
thumbnail - 3 x 2 x 1 cm


(click on an image to enlarge)

Vantasselite from Bihain, Luxembourg Prov., Belgium [db_pics/pics/CT530a.jpg] Vantasselite from Bihain, Luxembourg Prov., Belgium [db_pics/pics/CT530b.jpg] Vantasselite from Bihain, Luxembourg Prov., Belgium [db_pics/pics/CT530c.jpg]

Off-white pearly crystals of Vantasselite. From the type locality for the species.


CT417 - Canfieldite $ 80 (=~ £ 58) SOLD
Himmelsfürst Mine, Freiberg, Saxony, Germany
thumbnail - 1.8 x 1.5 x 1.2 cm


(click on an image to enlarge)

Canfieldite from Himmelsfürst Mine, Freiberg, Saxony, Germany [db_pics/pics/CT417a.jpg] Canfieldite from Himmelsfürst Mine, Freiberg, Saxony, Germany [db_pics/pics/CT417b.jpg] Canfieldite from Himmelsfürst Mine, Freiberg, Saxony, Germany [db_pics/pics/CT417c.jpg]

Small 1-2mm crystals of Canfieldite, rare silver tin sulfide, that contrast well against the light colored matrix. Canfieldite is in the Argyrodite group of minerals. From MINDAT: Named in 1893 by Samuel Lewis Penfield in honor of Frederick Alexander Canfield [April 7, 1849 Randolph, New Jersey, USA - July 3, 1926), of Dover, New Jersey, USA. Canfield was a mining engineer and mineral collector.


CT473 - Laffittite with Orpiment and Realgar $ 50 (=~ £ 36) SOLD
Getchell Mine, Humboldt Co., Nevada, USA
thumbnail - 3 x 3 x 1.5 cm


(click on an image to enlarge)

Laffittite with Orpiment and Realgar from Getchell Mine, Humboldt Co., Nevada, USA [db_pics/pics/CT473a.jpg] Laffittite with Orpiment and Realgar from Getchell Mine, Humboldt Co., Nevada, USA [db_pics/pics/CT473b.jpg] Laffittite with Orpiment and Realgar from Getchell Mine, Humboldt Co., Nevada, USA [db_pics/pics/CT473c.jpg]

Laffittite in matrix with yellow Orpiment and red Realgar. From MINDAT: Named in 1974 by Zdeněk Johan, Joseph Mantienne, and R. Picot in honor of Pierre Paul Laffitte (January 1, 1925 Saint-Paul-de-Vence, Alpes-Maritimes, France - ), director of BRGM (French Geological Survey), then director and president of Ecole Nationale Supérieure des Mines de Paris..


CT341 - Widgiemoolthalite $ 150 (=~ £ 108) SOLD
132 North Ni Mine (Mount Edwards Mine), Widgiemooltha, Western Australia, Australia
small cabinet - 5.5 x 3.5 x 2 cm


(click on an image to enlarge)

Widgiemoolthalite from 132 North Ni Mine (Mount Edwards Mine), Widgiemooltha, Western Australia, Australia [db_pics/pics/CT341a.jpg] Widgiemoolthalite from 132 North Ni Mine (Mount Edwards Mine), Widgiemooltha, Western Australia, Australia [db_pics/pics/CT341b.jpg] Widgiemoolthalite from 132 North Ni Mine (Mount Edwards Mine), Widgiemooltha, Western Australia, Australia [db_pics/pics/CT341c.jpg]

Thick layer of green Widgiemoolthalite on matrix. The Widgiemoolthalite is mostly massive light lime green with areas of darker green micro crystals. The 132 North open pit nickel mine has produced the greatest variety of secondary nickel minerals found anywhere in the world to date, some being the best of their species. It is the only locality for Widgiemoolthalite. Ex. Robert Phillips collection.


CT415 - Joaquinite with Neptunite $ 150 (=~ £ 108)
Gem Mine, San Benito Co., California, USA
small cabinet - 7.5 x 4.5 x 2.8 cm


(click on an image to enlarge)

Joaquinite with Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT415a.jpg] Joaquinite with Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT415b.jpg] Joaquinite with Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT415e.jpg] Joaquinite with Neptunite from Gem Mine, San Benito Co., California, USA [db_pics/pics/CT415f.jpg]

Schist matrix covered by dozens of small tan crystals of Joaquinite, and likely many more present under the areas of white Natrolite. There are also a few black Neptunite crystals in association.


CT276 - McGuinnessite $ 100 (=~ £ 72)
Copper King Mine, Red Mountain, Mendocino Co., California, USA
small cabinet - 6 x 3.5 x 3.5 cm


(click on an image to enlarge)

McGuinnessite from Copper King Mine, Red Mountain, Mendocino Co., California, USA [db_pics/pics/CT276a.jpg] McGuinnessite from Copper King Mine, Red Mountain, Mendocino Co., California, USA [db_pics/pics/CT276b.jpg] McGuinnessite from Copper King Mine, Red Mountain, Mendocino Co., California, USA [db_pics/pics/CT276c.jpg] McGuinnessite from Copper King Mine, Red Mountain, Mendocino Co., California, USA [db_pics/pics/CT276d.jpg]

Mcguinnessite is a rare Mg-Cu carbonate, a member of Rosasite Group and is named after well-known California mineralogist, Al McGuinness. The matrix is richly covered with radial clusters and hemispheres of teal-blue McGuinnessite on most sides. Comes with an old Chuck Trantham label that indicates it was collected by Chuck and Al McGuinness in May 1982 and valued at $40 at that time.


CT523 - Armstrongite $ 50 (=~ £ 36) SOLD
Dorozhnyi pegmatite, Khanbogd District, Ömnögovi Province, Mongolia
thumbnail - 1 x 1 x 0.7 cm


(click on an image to enlarge)

Armstrongite from Dorozhnyi pegmatite, Khanbogd District, Ömnögovi Province, Mongolia [db_pics/pics/CT523a.jpg] Armstrongite from Dorozhnyi pegmatite, Khanbogd District, Ömnögovi Province, Mongolia [db_pics/pics/CT523b.jpg] Armstrongite from Dorozhnyi pegmatite, Khanbogd District, Ömnögovi Province, Mongolia [db_pics/pics/CT523c.jpg]

Dark reddis brown Armstrongite from the type locality for the species. Named after American astronaut Neil Armstrong.


CT531 - Heinrichite $ 60 (=~ £ 43) SOLD
Wittichen, Black Forest, Germany
miniature - 3.5 x 2 x 2 cm


(click on an image to enlarge)

Heinrichite from Wittichen, Black Forest, Germany [db_pics/pics/CT531a.jpg] Heinrichite from Wittichen, Black Forest, Germany [db_pics/pics/CT531b.jpg] Heinrichite from Wittichen, Black Forest, Germany [db_pics/pics/CT531c.jpg] Heinrichite from Wittichen, Black Forest, Germany [db_pics/pics/CT531d.jpg] Heinrichite from Wittichen, Black Forest, Germany [db_pics/pics/CT531e.jpg]

Small yellow/green crystals of Heirichite on matrix, a rare mineral in the Autunite group of minerals.


CT314 - Decrespignyite and Tengerite $ 50 (=~ £ 36) SOLD
Paratoo Mine, Yunta, South Australia, Australia
thumbnail - 2.5 x 1 x 0.8 cm


(click on an image to enlarge)

Decrespignyite and Tengerite from Paratoo Mine, Yunta, South Australia, Australia [db_pics/pics/CT314a.jpg] Decrespignyite and Tengerite from Paratoo Mine, Yunta, South Australia, Australia [db_pics/pics/CT314b.jpg] Decrespignyite and Tengerite from Paratoo Mine, Yunta, South Australia, Australia [db_pics/pics/CT314c.jpg] Decrespignyite and Tengerite from Paratoo Mine, Yunta, South Australia, Australia [db_pics/pics/CT314d.jpg]

Two thumbnail sized specimens with blue Decrespignyite and white Tengerite.


CT291 - Barbertonite $ 60 (=~ £ 43) SOLD
Barberton, Transvaal, South Africa
miniature - 5 x 3 x 2.8 cm


(click on an image to enlarge)

Barbertonite from Barberton, Transvaal, South Africa [db_pics/pics/CT291a.jpg] Barbertonite from Barberton, Transvaal, South Africa [db_pics/pics/CT291b.jpg] Barbertonite from Barberton, Transvaal, South Africa [db_pics/pics/CT291c.jpg] Barbertonite from Barberton, Transvaal, South Africa [db_pics/pics/CT291d.jpg]

Sepentinite matrix richly covered and composed of purple Barbertonite. Barbertonite is a magnesium chromium carbonate mineral polymorphous with the mineral stichtite and, along with stichtite, is an alteration product of chromite in serpentinite. From the type locality for the species.


CT512 - Achtaragdite $ 120 (=~ £ 86)
Akhtaragda River mouth, Vilyui River Basin, Mirninsky District, Sakha Republic (Yakutia), Russia
thumbnail - 1.5 x 1.3 x 1.2 cm


(click on an image to enlarge)

Achtaragdite from Akhtaragda River mouth, Vilyui River Basin, Mirninsky District, Sakha Republic (Yakutia), Russia [db_pics/pics/CT512a.jpg] Achtaragdite from Akhtaragda River mouth, Vilyui River Basin, Mirninsky District, Sakha Republic (Yakutia), Russia [db_pics/pics/CT512b.jpg] Achtaragdite from Akhtaragda River mouth, Vilyui River Basin, Mirninsky District, Sakha Republic (Yakutia), Russia [db_pics/pics/CT512c.jpg] Achtaragdite from Akhtaragda River mouth, Vilyui River Basin, Mirninsky District, Sakha Republic (Yakutia), Russia [db_pics/pics/CT512d.jpg]

Achtaragdite is a rare pseudomorph of a hydrogrossular-chlorite-carbonate mineral after what is believed to be Helvite. This is a little understood psuedo likely found many decades ago at the type locality for Grossular garnet in Siberia. It is a fine example with a well formed tetrahedron of the form of the former Helvite crystal. 


CT532 - Pararammelsbergite $ 75 (=~ £ 54) SOLD
Rammelsberg, Saxony, Germany
miniature - 3.5 x 2 x 1.5 cm


(click on an image to enlarge)

Pararammelsbergite from Rammelsberg, Saxony, Germany [db_pics/pics/CT532a.jpg] Pararammelsbergite from Rammelsberg, Saxony, Germany [db_pics/pics/CT532b.jpg] Pararammelsbergite from Rammelsberg, Saxony, Germany [db_pics/pics/CT532c.jpg]

Open vug filled with silvery grey crystals of Pararammelsbergite, a polymorph of Rammelsbergite in the Lollingite group of minerals.


CT500 - Schulenbergite $ 175 (=~ £ 126) SOLD
Bastenberg Mine, Ramsbeck, North Rhine-Westphalia, Germany
miniature - 4.9 x 3.5 x 2 cm


(click on an image to enlarge)

Schulenbergite from Bastenberg Mine, Ramsbeck, North Rhine-Westphalia, Germany [db_pics/pics/CT500a.jpg] Schulenbergite from Bastenberg Mine, Ramsbeck, North Rhine-Westphalia, Germany [db_pics/pics/CT500b.jpg] Schulenbergite from Bastenberg Mine, Ramsbeck, North Rhine-Westphalia, Germany [db_pics/pics/CT500c.jpg] Schulenbergite from Bastenberg Mine, Ramsbeck, North Rhine-Westphalia, Germany [db_pics/pics/CT500d.jpg] Schulenbergite from Bastenberg Mine, Ramsbeck, North Rhine-Westphalia, Germany [db_pics/pics/CT500f.jpg]

Rare specimen of blue Schulenbergite, a hydrated copper zinc sulfate mineral, coating many sides of a white Quartz matrix. The Bastenberg Mine is an ancient lead and zinc mine and these specimens are hard to find. Comes with two old labels, one from Al McGuinness and one from Chuck Trantham showing his very old price of $100.

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