Mixed Minerals


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TZ207 - Pyrite $ 600 SOLD
Merelani Hills, Arusha, Tanzania
small cabinet - 6.5 x 6 x 5.5 cm


Pyrite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz207a.jpg] Pyrite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz207b.jpg] Pyrite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz207c.jpg] Pyrite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz207d.jpg]

Complete, equant single Pyrite crystal. These have been coming out recently more than ever before however most are dinged, partial crystals, or not nearly as symetrical as this one. In fact, of the many crystals I've examined recently, this is the only one I've selected. There is some edge wear present and the luster varies from face to face from a high luster to a more matte luster. There is some attached Graphite, Calcite, and even a tiny bit of Diopside, mostly at the base. A good one!


TZ208 - Sphalerite $ 200 SOLD
Merelani Hills, Arusha, Tanzania
thumbnail - 1.5 x 1.1 x 0.8 cm


Sphalerite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz208a.jpg] Sphalerite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz208b.jpg] Sphalerite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz208c.jpg] Sphalerite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz208d.jpg]

Complete single crystal with a rich red/orange color. Gemmy when backlit.


TZ209 - Wurtzite $ 100 SOLD
Merelani Hills, Arusha, Tanzania
thumbnail - 1.2 x 1.0 x 0.5 cm


Wurtzite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz209a.jpg] Wurtzite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz209b.jpg]

Complete single crystal with a rich red/orange color. There is a small ding on the termination. Tabular crystal that shows its color without backlighting.


TZ210 - Wurtzite $ 450 SOLD
Merelani Hills, Arusha, Tanzania
thumbnail - 2.5 x 2 x 1.6 cm


Wurtzite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz210a.jpg] Wurtzite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz210b.jpg] Wurtzite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz210c.jpg]

Large single crystal, largest of the lot, with a red/orange color visible along edges.


TZ211 - Wurtzite $ 300
Merelani Hills, Arusha, Tanzania
thumbnail - 1.5 x 1.5 x 0.8 cm


Wurtzite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz211a.jpg] Wurtzite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz211b.jpg] Wurtzite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz211c.jpg]

Single crystal with a rich red/orange color, gemmy and bright.


TZ212 - Wurtzite with Sphalerite $ 250
Merelani Hills, Arusha, Tanzania
thumbnail - 1.4 x 1.0 x 1 cm


Wurtzite with Sphalerite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz212a.jpg] Wurtzite with Sphalerite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz212b.jpg]

Translucent red/orange color pagoda shaped crystal. At the tips are dark areas of epitaxial Sphalerite.


TZ213 - Wurtzite $ 500 SOLD
Merelani Hills, Arusha, Tanzania
thumbnail - 1.6 x 1.1 x 0.5 cm


Wurtzite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz213a.jpg] Wurtzite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz213b.jpg] Wurtzite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz213c.jpg]

Complete single crystal, tabular form with a rich red/orange color.


TZ214 - Prehnite on Tanzanite SOLD
Merelani Hills, Arusha, Tanzania
small cabinet - 5.3 x 3.5 x 1.6 cm


Prehnite on Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz214a.jpg] Prehnite on Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz214b.jpg] Prehnite on Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz214c.jpg] Prehnite on Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz214d.jpg] Prehnite on Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz214e.jpg] Prehnite on Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz214f.jpg] Prehnite on Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz214g.jpg]

Fine and aesthetic Tanzanite crystal with a double tipped termination. The color on the front face is a very rich purple with a blue color when viewed through the narrow face. This is an unheated, natural Tanzanite with a red coloration when viewed up the C-axis (viewed from the top down with a light shining up from the bottom; a strong back light in one photo shows some of the red bouncing around inside). Many websites advertise their Tanzanites as natural and unheated simply because there is dichroism present (the purple and blue color change), however Tanzanite is naturally trichroic and the presence of dichroism is not proof a crystal is unheated. Heating destroys the trichroism but leaves a more enhanced dichroic purple and blue crystal. This crystal has a bonus of two blue Prehnite crystals attached to the backside and a cluster of Prehnite and small Tanzanites on the right side. The crystal is complete and undamaged with the esception of a couple of the small Tanzanites in the attached cluster. Overall this is a really good one that stands out among similarly sized Tanzanites.


TZ216 - Prehnite on Tanzanite $ 40000 SOLD
Merelani Hills, Arusha, Tanzania
small cabinet - 6 x 3.3 x 1.4 cm


Prehnite on Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz216a.jpg] Prehnite on Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz216b.jpg] Prehnite on Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz216c.jpg] Prehnite on Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz216d.jpg] Prehnite on Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz216e.jpg] Prehnite on Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz216f.jpg] Prehnite on Tanzanite from Merelani Hills, Arusha, Tanzania [db_pics/pics/tz216g.jpg]

Fine and aesthetic Tanzanite crystal with superb color and high degree of transparency. Natural and unheated. This is a great crystal for a variety of reasons: 1) the color is as good as it gets, 2) it is undamaged, 3) it has a high degree of transparency - but not only that, whereas many tanzanites only have transparency at the top, they also taper greatly towards the termination, meaning the transparency is only in a thin zone at the top. This crystal has a uniform thickness top to bottom, which makes the transparency even more impressive, and gives it significant gem value, 4) the attached clusters of yellow Prehnite add color contrast and pizzaz, and 5), it has a unique form, like 2 crystals attached side by side. I have viewed thousands of Tanzanites over the years and this one really stands out in terms of quality, aesthetics, and uniqueness. Weighs 65.8 grams.


K100 - Hematite $ 450
N'Chwanning Mine, Kuruman, South Africa
miniature - 3.8 x 2.6 x 2.5 cm


Hematite from N'Chwanning Mine, Kuruman, South Africa [db_pics/pics/k100a.jpg] Hematite from N'Chwanning Mine, Kuruman, South Africa [db_pics/pics/k100b.jpg] Hematite from N'Chwanning Mine, Kuruman, South Africa [db_pics/pics/k100c.jpg] Hematite from N'Chwanning Mine, Kuruman, South Africa [db_pics/pics/k100d.jpg]

Cluster of prismatic Hematite crystals. These are a rare form, hexagonal in cross-section with a flat termination from a single pocket found approximately 5-6 years ago.


K101 - Hematite $ 450
N'Chwanning Mine, Kuruman, South Africa
thumbnail - 2.5 x 2.3 x 1.5 cm


Hematite from N'Chwanning Mine, Kuruman, South Africa [db_pics/pics/k101a.jpg] Hematite from N'Chwanning Mine, Kuruman, South Africa [db_pics/pics/k101b.jpg] Hematite from N'Chwanning Mine, Kuruman, South Africa [db_pics/pics/k101c.jpg] Hematite from N'Chwanning Mine, Kuruman, South Africa [db_pics/pics/k101d.jpg]

Cluster of prismatic Hematite crystals. These are a rare form, hexagonal in cross-section with a flat termination from a single pocket found approximately 5-6 years ago.


K102 - Hematite $ 750 SOLD
N'Chwanning Mine, Kuruman, South Africa
thumbnail - 2.7 x 1 x 0.8 cm


Hematite from N'Chwanning Mine, Kuruman, South Africa [db_pics/pics/k102a.jpg] Hematite from N'Chwanning Mine, Kuruman, South Africa [db_pics/pics/k102b.jpg] Hematite from N'Chwanning Mine, Kuruman, South Africa [db_pics/pics/k102c.jpg]

Prismatic Hematite crystal, a near floater, double terminated and complete all around with a contact at the mid-backside where another crystal was present. These is a rare form of Hematite, hexagonal in cross-section with a flat termination from a single pocket found approximately 5-6 years ago.


E237 - Copper after Cuprite $ 1200 SOLD
Poteryaevskoe Mine, Rubtsovskoe Deposit, Western Siberia, Russia
thumbnail - 3 x 2.5 x 2.5 cm


Copper after Cuprite from Poteryaevskoe Mine, Rubtsovskoe Deposit, Western Siberia, Russia [db_pics/pics/e237a.jpg] Copper after Cuprite from Poteryaevskoe Mine, Rubtsovskoe Deposit, Western Siberia, Russia [db_pics/pics/e237b.jpg] Copper after Cuprite from Poteryaevskoe Mine, Rubtsovskoe Deposit, Western Siberia, Russia [db_pics/pics/e237c.jpg] Copper after Cuprite from Poteryaevskoe Mine, Rubtsovskoe Deposit, Western Siberia, Russia [db_pics/pics/e237d.jpg]

Intergrown octahedrons of Copper that have nearly completely replaced earlier Cuprite crystals (just a touch of Cuprite is visible). Complete all around and undamaged. This is an exceptional specimen as most of these have a coarser appearance due to larger subcrystals of Copper (you can see such coarser crystals attached to part of this specimen). The finess of the Copper leads to a much sharper crystal.


E238 - Copper after Cuprite with Silver $ 1200
Poteryaevskoe Mine, Rubtsovskoe Deposit, Western Siberia, Russia
thumbnail - 2.9 x 2.5 x 2.0 cm


Copper after Cuprite with Silver from Poteryaevskoe Mine, Rubtsovskoe Deposit, Western Siberia, Russia [db_pics/pics/e238a.jpg] Copper after Cuprite with Silver from Poteryaevskoe Mine, Rubtsovskoe Deposit, Western Siberia, Russia [db_pics/pics/e238b.jpg] Copper after Cuprite with Silver from Poteryaevskoe Mine, Rubtsovskoe Deposit, Western Siberia, Russia [db_pics/pics/e238c.jpg]

Intergrown octahedrons of Copper that have nearly completely replaced earlier Cuprite crystals (just a touch of Cuprite is visible). Complete all around and undamaged. Small areas of Silver are aso present giving it added appeal. This is an exceptional specimen as most of these have a coarser appearance due to larger subcrystals of Copper. The finess of the Copper leads to a much sharper crystal.



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