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8 specimens found
1 |

Prehnite -well crystalized
stock #18.1-587
Merelani, Umba Valley, Lelatama Mountains, Arusha Region
Manyara Region, Tanzania
5.7 x 3.9 x 3.2 CM (cabinet)
price: $300
Dec 2018

Radiating cluster of fine terminated Prehnite crystals from the famed Merelani Hills best known for its Tanzanite. In fine condition by naked eye, some very minor bruising is seen with magnification, but overall the visual impression is pristine. This is also a color-changing Prehnite and can look green to a gray-blue depending on the light source. Some of the crystals also show slight rotation or twisting like some of the classic European Alpine specimens.
Diopside on Graphite
stock #17.1-885
Merelani, Umba Valley, Lelatama Mountains, Arusha Region
Manyara Region, Tanzania
2.9 x 2.2 x 2.3 CM (small miniature/ large thumbnail (toenail))
price: $390
Pre Holiday 2017

The gem Diopside crystals from Merlani are modern classics and can have brilliant form as seen here. The color is a yellow to pale greenish hue and the crystals are complete all around, undamaged and statuesque. The contrast with the Graphite adds a nice balance and the complex modified terminations are very distinctive. Good luster with gem clear areas but more translucent than transparent overall.
Andradite v. Demantoid with Quartz and Diopside
stock #13.1-372
Merelani, Umba Valley, Lelatama Mountains, Arusha Region
Arusha Region, Tanzania
5.1 x 3.1 x 2.8 CM (small cabinet/ large miniature)
price: $485
Winter 2016-17

A really cute, bright specimen covered in sharp, gem grade Demantoid Garnets offset by a Quartz crystal. Finds of these Garnets have been sporadic and very few have had this sculptural form, grown on a Diopside base. The garnets fully cover the matrix on all sides, the smallest are a yellow color and the largest as seen are the Demantoid green. In great condition, damage-free and very lustrous, this is much better in person.
Scapolite- gem crystal with
stock #16.1-198
Morogoro, Uluguru Mountains
Morogoro, Tanzania
3.1 x 1.6 x 1.3 CM (small miniature/ large thumbnail (toenail))
price: $400
Winter 2016-17

A clear, mostly colorless terminated crystal with a vibrant orange core that gives the entire crystal a rich color. The cats eye effect is very strong and has a distinct "shimmer". In very good condition, with very minor contacts and no eye visible damage or chips. Scapolite is a common mineral, but good gem grade is quite rare, this locality has produced very few fine pieces like this one. A good value.
Diopside on Graphite
stock #16.1-155
Merelani, Umba Valley, Lelatama Mountains, Arusha Region
Arusha Region, Tanzania
3.6 x 2.4 x 3.4 CM (small miniature/ large thumbnail (toenail))
price: $1100
Winter 2016-17

Small yet with incredible impact and esthetics. The combination of the mint green Diopside gem clear crystals perched on bladed Graphite crystals is impressive. In fine condition, there are unidentified hairlike crystals as well best seen with magnification. A great example of this highly sought after combination, this looks great from all sides.
Dravite (unusual gem clear crystal)
stock #14.1-049
Namalulu, Simanjiro District
Manyara Region, Tanzania
3.8 x 1.1 x .8 CM (miniature)
price: $340


From recent finds of Dravite in Tanzania, this is a very sharp, lustrous and surprisingly gemmy single crystal. Deep red brown color in excellent condition this glows with a backlight, in normal lighting it looks darker, more like the photos shown here.
Tanzanite Multi Color zoned crystal
stock #14.1-042
Merelani, Umba Valley, Lelatama Mountains, Arusha Region
Arusha Region, Tanzania
3.1 x 2.2 x.9 (small miniature/ large thumbnail (toenail))
price: $925
Spring 2014

A sharp gemmy crystal with a strong color change and dramatic zoning. Top grade glassy luster and a lot prettier in person, this shows color changes from yellow to green in the top part, and blue, purple and red in the lower part that is hard to appreciate in photos. The overall condition is fine, there are some small contact rough spots on the backside that are not easy to see and are completely invisible from the display side. The front of the specimen is clean, sharp and undamaged. Far better in person and a great value for such a clean example!
Tanzanite (very fine, zoned blue-green Zoisite)
stock #A 148-104
Merelani, Umba Valley, Lelatama Mountains, Arusha Region
Arusha Region, Tanzania
5.3 x 1.5 x 1 CM (small cabinet/ large miniature)
price: $2250


An very impressive, sizable and sharp crystal with great luster and strong color change wit the added feature of a well defined internal color zone stripe that is very rare. Displays great with good clarity, only one very tiny edge chip is noted that is almost invisible to the naked eye, and not visible from the best display side. The most impressive feature is the distinct color changes as this is rotated, The color is an intense blue, then a zoned green, rich purple and from along the c axis a strong red. With good backlight a small yellow zone is also seen. With the costs of even average gem Tanzanite being incredibly high, this is an ecxeptional piece at a great price.
8 specimens found
1 |