Vivianite from Tomokoni mine, Potosí, Bolivia - image 1

Vivianite from Tomokoni mine, Potosí, Bolivia

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Some of the world's best crystals of Vivianite, a hydrated iron phosphate, have come from mines in the Potosí Department, Bolivia. This large miniature, to small cabinet crystal spray, consisting of large, bladed, monoclinic Vivianite crystals with a small amount of orange-red mudrock matrix comes from the Tomokoni mine, Machacamarca District. The Vivianite crystals reach over 6.5 cm in length and several are really well-terminated, with sharp, undamaged edges, and a glassy to slightly resinous lustre. Their colour is a very dark green, but this becomes paler when backlit due to the translucent nature of Vivianite. A really fine example of large Vivianite crystals from a classic occurrence.

Product details

SpeciesVivianite
SizeSmall Cabinet
Dimensions6.5 x 7.6 x 3.2 cm
Added on10/24/2024
LocalityBolivia, Potosí, Tomokoni mine
Current owner
Unknown Owner
Acquired
Jul 2026
Price paid
$300.00
Previous owners
DateCollectorAcquisition price
—Crystal ClassicsNot disclosed

Learn more

Vivianite
Mineral guide
Learn about Vivianite
color-changing, pleochroic crystals from Bolivia, prized for prisms and velvety luster on matrix; rare, collectible, with light-sensitive care.
Vivianite
Regional guide
Vivianite from Tomokoni Mine, Bolivia
from Tomokoni Mine, Bolivia: sharp, glassy green crystals on red sandstone, prized for purity, timing, and matrix retention.
Locality guide
Tomokoni mine
Tomokoni mine, Bolivia — premier vivianite locality with emerald-green, sword-shaped crystals on red sandstone; prized for pure presentation and collectability.