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Prehnite on Tanzanite
Prehnite on Tanzanite Prehnite on Tanzanite Prehnite on Tanzanite Prehnite on Tanzanite Prehnite on Tanzanite
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Prehnite on Tanzanite (Ref: AF721)

Merelani Hills, Lelatema Mountains, Arusha Region, Tanzania
29mm x 20mm x 10mm
$3900
Killer Tanzanite thumbnail that's also a great association piece.  Fine, gemmy blue Tanzanite crystal with excellent luster and great transparency with attached distinct, individual Prehnite crystals (analyzed) on the backside. Prehnite from Merelani is usually seen as rounded aggregates, yet on this specimen they occur as individual crystals to 7mm wide. In addition to the Prehnite, there are white crystals of an unidentified mineral also attached to the backside. A very nice Tanzanite, undamaged with TOP luster, good color and highly gemmy.
Data last checked on 1st Nov 2025
From: Marin Minerals
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See Also

Prehnite on Tanzanite
Merelani Hills, Arusha, Tanzania
$4750
45mm x 28mm x 20mm
From: Marin Minerals
Tanzanite
Merelani Hills, Arusha, Tanzania
$3800
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From: Marin Minerals
Tanzanite
Merelani Hills, Arusha Region, Tanzania
$3500
35mm x 17mm x 17mm
From: Marin Minerals
Tanzanite
Merelani Hills, Lelatema Mtns., Arusha Region, Tanzania
$4500
31mm x 18mm x 8mm
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Prehnite on Epidote
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$3500
80mm x 80mm x 50mm
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Allanite on Tanzanite
Merelani Hills, Arusha, Tanzania
$3000
18mm x 10mm x 9mm
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Prehnite
Jeffrey Mine, Asbestos, Quebec, Canada
$3500
110mm x 70mm x 60mm
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Hydroxyapophyllite-(K) on Prehnite
Fairfax Quarry, Centreville, Culpeper Basin, Fairfax Co., Virginia, USA
$3500
150mm x 110mm x 90mm
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Tanzanite UNHEATED
Merelani Hills | Lelatema Mts. | Simanjiro | Arusha | Tanzania
$2994 *
36mm x 21mm x 15mm
From: Wendel Minerals
Zoisite var. Tanzanite (8.60 ct)
Merelani Hills, Lelatema Mtns., Simanjiro Dist., Manyara Region, Tanzania
$5000
10mm
From: The Arkenstone
Prehnite Cast After Anhydrite
Prospect Park Quarry, Prospect Park, Passaic Co., New Jersey, USA
$4500
120mm x 100mm x 60mm
From: The Arkenstone
Prehnite on Tanzanite
Merelani Hills, Arusha, Tanzania
$1800
28mm x 17mm x 14mm
From: Marin Minerals
Prehnite on Tanzanite
Merelani Hills, Arusha, Tanzania
$6000
31mm x 22mm x 15mm
From: Marin Minerals
Chrome Diopside
Merelani Hills, Lelatema Mtns., Simanjiro Dist., Manyara Region, Tanzania
$3850
30mm x 10mm x 10mm
From: The Arkenstone
Amethyst with Prehnite, Calcite
Gobobseb Mtns., Erongo Region, Namibia
$3000
95mm x 70mm x 55mm
From: Marin Minerals
* price is an approximate conversion and may not be accurate.

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