Minerals | By_Name | By_Class | Phosphates | VIVIANITE

VIVIANITE Specimens



This list can be limited to available items only.
This is a partial listing. See the Next Page (earlier specimens)
# VIV-22, $85.00 (Sale Pending) 75% Discount - Sale Price $21.25
Dims: 1.82x1.00x0.89in (4.63x2.53x2.27cm) .... Wt: 1.06oz (30.0g) .... Loc: Cigana mine, Galileia, Minas Gerais, Brazil
This sheaf of vivianite crystals shows excellent form and color, although with limited transparency. The individual crystals are vitreous and well-formed. Keep vivianite specimens out of the light to keep them looking nice (else they turn black and opaque).
# VIV-21, $43.00 Sold!
Dims: 2.56x1.86x1.36" (6.49x4.73x3.45cm) .... Wt: 3.62oz (102.5g) .... Loc: Kertch peninsula, Crimea Oblast', Ukraine
One bivalve shell on this fossiliferous rock has been broken open to reveal two dozen vivianite crystals hidden within. While the surfaces are dark, nearly black, they are transparent enough to show the unique blue color of vivianite crystals. When held to the light all of the crystals appear transparent and have this blue to blue-green color, so the black is a surface effect. Of course, vivianite does darken upon exposure to light, so it should be stored in a box or other dark area when it is not being viewed.
# VIV-20, $60.00 Sold!
Dims: 3.10x2.80x1.92" (7.87x7.11x4.87cm) .... Wt: 6.28oz (177.7g) .... Loc: Kerch, Ukraine
This specimen is a brown conglomate host rock (brown balls cemented by a soft brown matrix), with a cavity that has been lined with a thin layer of vivianite, plus many long prismatic crystals of viviantite. These crystals are gray-blue and transparent, but their surface luster, while vitreous, gives them a nearly black opaque appearance. The crystals have a cross section and termination rather like a sword. The optical effect is unusual, in that the crystals appear dark and opaque until you hold them up to a light, then they clearly are transparent. Of course, viviantite darkens with exposure to light, so this specimen should be stored in the dark when not on display.
# VIV-19, $25.00 Sold!
Dims: 2.77x1.23x0.83" (7.03x3.13x2.12cm) .... Wt: 1.27oz (35.9g) .... Loc: Llallagua, Bustillo, Potosi, Bolivia
While the unique blue color of vivianite is apparent on this specimen, it has darkened to nearly black, especially on the exposed top. Some protected areas on the bottom have an appealing crystal shape and still appear transparent. The crystal is quite fragile, and tiny flakes of vivianite come off during handling, although they don't appear to significantly affect the overall appearance of the specimen. The specimen has several natural faces (not just cleavage planes), and is relatively nice even though it shows some damage.
This was a partial listing. See the Next Page (earlier items)
This list can be limited to available items only.
Would you like to be notified when additional specimens are available? Yes

Would you like to fill out a special request form? Yes


Minerals | By_Name | By_Class | Phosphates | VIVIANITE

 

Copyright ©1995-2014 by Amethyst Galleries, Inc.
Site design & programming by galleries.com web services