|
 |
 |
 |
 |
 |
 |
||
 |
|||||||
|
J611 - Pyrargyrite with Pyrite $ 200 Uchuchacua Mine, Peru small cabinet - 5.5 x 5.2 x 5.0 cm ![Pyrargyrite with Pyrite from Uchuchacua Mine, Peru [db_pics/pics/J611a.jpg]](/db_pics/pics/J611a.jpg)
![Pyrargyrite with Pyrite from Uchuchacua Mine, Peru [db_pics/pics/J611b.jpg]](/db_pics/pics/J611b.jpg)
![Pyrargyrite with Pyrite from Uchuchacua Mine, Peru [db_pics/pics/J611c.jpg]](/db_pics/pics/J611c.jpg)
Rich Pyrargyrite specimen with numerous clusters of well-defined crystals scattered throughout the sulfide matrix. Other species in association include Pyrite, Quartz, and Calcite.
J546 - Franckeite (Var: Potosíite) with Franckeite $ 140 San Jose Mine, Cercado Province, Oruro City, Oruro Dept., Bolivia miniature - 3.8 x 3.1 x 2.5 cm ![Franckeite (Var: Potosíite) with Franckeite from San Jose Mine, Cercado Province, Oruro City, Oruro Dept., Bolivia [db_pics/pics/J546a.jpg]](/db_pics/pics/J546a.jpg)
![Franckeite (Var: Potosíite) with Franckeite from San Jose Mine, Cercado Province, Oruro City, Oruro Dept., Bolivia [db_pics/pics/J546b.jpg]](/db_pics/pics/J546b.jpg)
![Franckeite (Var: Potosíite) with Franckeite from San Jose Mine, Cercado Province, Oruro City, Oruro Dept., Bolivia [db_pics/pics/J546c.jpg]](/db_pics/pics/J546c.jpg)
A fine example of the rare sulfosalt species, Franckeite, with radiating spear-shaped crystals and what was formerly known as Potosiite (now discredited). Potosiite is the variety of Franckeite that is tin-poor in its chemistry with crystals more tabular in shape. A rare specimen.
J589 - Vesuvianite $ 225 Jeffrey Mine, Asbestos, Quebec, Canada miniature - 4.0 x 2.8 x 2.6 cm ![Vesuvianite from Jeffrey Mine, Asbestos, Quebec, Canada [db_pics/pics/J589a.jpg]](/db_pics/pics/J589a.jpg)
![Vesuvianite from Jeffrey Mine, Asbestos, Quebec, Canada [db_pics/pics/J589b.jpg]](/db_pics/pics/J589b.jpg)
![Vesuvianite from Jeffrey Mine, Asbestos, Quebec, Canada [db_pics/pics/J589c.jpg]](/db_pics/pics/J589c.jpg)
![Vesuvianite from Jeffrey Mine, Asbestos, Quebec, Canada [db_pics/pics/J589d.jpg]](/db_pics/pics/J589d.jpg)
![Vesuvianite from Jeffrey Mine, Asbestos, Quebec, Canada [db_pics/pics/J589e.jpg]](/db_pics/pics/J589e.jpg)
A good sized matrix Vesuvianite specimen, one of the best color combination examples for this type. The matrix is purple mangan Vesuvianite covered by an outer layer of yellow/green Vesuvianite crystals. Largest single crystal in the group is just over 2cm in length. The mine is now closed.
J624 - Anatase on Albite with Quartz $ 150 Kharan, Balochistan, Pakistan small cabinet - 7.0 x 5.8 x 3.8 cm ![Anatase on Albite with Quartz from Kharan, Balochistan, Pakistan [db_pics/pics/J624a.jpg]](/db_pics/pics/J624a.jpg)
![Anatase on Albite with Quartz from Kharan, Balochistan, Pakistan [db_pics/pics/J624b.jpg]](/db_pics/pics/J624b.jpg)
![Anatase on Albite with Quartz from Kharan, Balochistan, Pakistan [db_pics/pics/J624c.jpg]](/db_pics/pics/J624c.jpg)
Three Anatase crystals seen on white Albite and Quartz covered matrix. The largest single Anatase crystal is 9mm across. All three crystals are undamaged and translucent at the tips.
J484 - Prehnite $ 300 Merelani Hills, Arusha, Tanzania miniature - 4.7 x 3.1 x 2.6 cm ![Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/J484a.jpg]](/db_pics/pics/J484a.jpg)
![Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/J484b.jpg]](/db_pics/pics/J484b.jpg)
![Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/J484e.jpg]](/db_pics/pics/J484e.jpg)
Well crystallized Prehnite from recent finds at the Merelani Tanzanite mines. Highly translucent with a greenish yellow color with large, chunky crystals. These recent Prehnites are the best ever found at the locality.
J481 - Prehnite $ 500 Merelani Hills, Arusha, Tanzania small cabinet - 5.4 x 5.0 x 3.5 cm ![Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/J481a.jpg]](/db_pics/pics/J481a.jpg)
![Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/J481b.jpg]](/db_pics/pics/J481b.jpg)
![Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/j481d.jpg]](/db_pics/pics/j481d.jpg)
![Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/j481e.jpg]](/db_pics/pics/j481e.jpg)
![Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/j481f.jpg]](/db_pics/pics/j481f.jpg)
Gemmy bright yellow-green Prehnite in a spherical grouping with sharp ridges of crystals. A small amount of silver-gray Graphite can be seen on one side. There is also an inclusion of blue, incomplete Tanzanite crystals. The quality of the Prehnite is superb with big crystals extending out of the main group with good luster and very translucent. Only minor contact and cleaving in a few areas.
J485 - Prehnite $ 380 Merelani Hills, Arusha, Tanzania small cabinet - 5.3 x 5.0 x 2.5 cm ![Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/J485a.jpg]](/db_pics/pics/J485a.jpg)
![Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/J485b.jpg]](/db_pics/pics/J485b.jpg)
![Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/J485d.jpg]](/db_pics/pics/J485d.jpg)
Well crystallized Prehnite from recent finds at the Merelani Tanzanite mines. Highly translucent with a greenish yellow color with a crystal habit of parallel bladed/tabular crystals which are a new style (at least to me) not seen until this year. These recent Prehnites are the best ever found at the locality.
J513 - Prehnite $ 300 Merelani Hills, Arusha, Tanzania miniature - 3.3 x 2.5 x 2.4 cm ![Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/J513a.jpg]](/db_pics/pics/J513a.jpg)
![Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/J513b.jpg]](/db_pics/pics/J513b.jpg)
![Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/J513d.jpg]](/db_pics/pics/J513d.jpg)
Well crystallized Prehnite from recent finds at the Merelani Tanzanite mines. Highly translucent with a greenish yellow color. This one is an exceptional small miniature with very stout, thick crystls forming a 3cm wide radial grouping. No damage to the crystals. These recent Prehnites are the best ever found at the locality.
J536 - Prehnite $ 200 Merelani Hills, Arusha, Tanzania small cabinet - 5.6 x 4.7 x 2.5 cm ![Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/J536a.jpg]](/db_pics/pics/J536a.jpg)
![Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/J536b.jpg]](/db_pics/pics/J536b.jpg)
![Prehnite from Merelani Hills, Arusha, Tanzania [db_pics/pics/J536c.jpg]](/db_pics/pics/J536c.jpg)
Gemmy bright yellow-green Prehnite cluster with sharp ridges of crystals. A small amount of silver-gray Graphite can be seen on the bottom. The quality of the Prehnite is superb with big crystals forming an excellent quality specimen with good luster and very translucent.
J547 - Rhodonite with Bustamite and Galena $ 275 Broken Hill, New South Wales, Australia cabinet - 10.0 x 6.1 x 3.5 cm ![Rhodonite with Bustamite and Galena from Broken Hill, New South Wales, Australia [db_pics/pics/J547a.jpg]](/db_pics/pics/J547a.jpg)
![Rhodonite with Bustamite and Galena from Broken Hill, New South Wales, Australia [db_pics/pics/J547b.jpg]](/db_pics/pics/J547b.jpg)
![Rhodonite with Bustamite and Galena from Broken Hill, New South Wales, Australia [db_pics/pics/J547c.jpg]](/db_pics/pics/J547c.jpg)
Translucent red color Rhodonite crystals are seen in close association with metallic gray Galena. The matrix consists of mostly compact, massive, pinkish color Bustamite, a calcium manganese silicate. The largest Rhodonite crystal is about 1cm wide and gemmy.
J609 - Copper $ 180 Broken Hill, New South Wales, Australia small cabinet - 7.0 x 6.0 x 5.0 cm ![Copper from Broken Hill, New South Wales, Australia [db_pics/pics/J609a.jpg]](/db_pics/pics/J609a.jpg)
![Copper from Broken Hill, New South Wales, Australia [db_pics/pics/J609b.jpg]](/db_pics/pics/J609b.jpg)
![Copper from Broken Hill, New South Wales, Australia [db_pics/pics/J609c.jpg]](/db_pics/pics/J609c.jpg)
This specimen consists of almost 100% green Malachite coated dendritic Copper. It has an interesting sculptural form that still shows a number of Quartz matrix fragments that appear to be floating within the mass of copper.
J600 - Magnetite $ 90 Cerro Huanaquino, Totora, Dept. Potosi, Bolivia small cabinet - 8.5 x 5.2 x 3.8 cm ![Magnetite from Cerro Huanaquino, Totora, Dept. Potosi, Bolivia [db_pics/pics/J600a.jpg]](/db_pics/pics/J600a.jpg)
![Magnetite from Cerro Huanaquino, Totora, Dept. Potosi, Bolivia [db_pics/pics/J600b.jpg]](/db_pics/pics/J600b.jpg)
![Magnetite from Cerro Huanaquino, Totora, Dept. Potosi, Bolivia [db_pics/pics/J600c.jpg]](/db_pics/pics/J600c.jpg)
Razor sharp and lustrous octahedrons of Magnetite. The Magnetite forms a continuous layer of textbook octahedral crystals on top of a hard, brecciated matrix. An excellent example of the species with the argest crystal measuring about 8mm wide.
J616 - Fluorite $ 175 Rogerly Mine, Durham, England cabinet - 11.1 x 6.8 x 3.8 cm ![Fluorite from Rogerly Mine, Durham, England [db_pics/pics/J616a.jpg]](/db_pics/pics/J616a.jpg)
![Fluorite from Rogerly Mine, Durham, England [db_pics/pics/J616b.jpg]](/db_pics/pics/J616b.jpg)
![Fluorite from Rogerly Mine, Durham, England [db_pics/pics/J616c.jpg]](/db_pics/pics/J616c.jpg)
Transparent forest green color Fluorite crystals cover the entire top of the matrix. The largest single crystal is 3.0cm wide, located in the center of the specimen. It came from the mining activity done at Rogerly in the early 2000's. Bottom has been sawn flat to better display the specimen. Out of a collection, the invoice from 2006 shows a price of $185.
J243 - Spinel $ 125 Mahenge, Morogoro, Tanzania thumbnail - 2.3 x 1.7 x 1.6 cm ![Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/J243a.jpg]](/db_pics/pics/J243a.jpg)
![Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/J243b.jpg]](/db_pics/pics/J243b.jpg)
![Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/J243c.jpg]](/db_pics/pics/J243c.jpg)
Complete octahedral pink Spinel crystal with good color. Slight edge chipping. A very good spinel.
J248 - Spinel $ 125 Mahenge, Morogoro, Tanzania thumbnail - 2.7 x 2.5 x 2.0 cm ![Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/J248a.jpg]](/db_pics/pics/J248a.jpg)
![Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/J248b.jpg]](/db_pics/pics/J248b.jpg)
![Spinel from Mahenge, Morogoro, Tanzania [db_pics/pics/J248c.jpg]](/db_pics/pics/J248c.jpg)
Complete octahedral red Spinel crystal with good color. Some edge chipping but good overalll conditon and form. Rich gemmy areas within.
©2010-2018 Marin Mineral |