Prehnite, Laumontite - image 1

Prehnite, Laumontite

Unknown Owner
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An EXCELLENT specimen from a very UNCOMMON Minnesota locality of sparkly off-white to light rust-brown, columnar prehnite pseudomorphing laumontite on matrix from the Knife River. A very small find of these came out several years ago and this is the BEST and LARGEST of the two specimens that we obtained. A couple of broken crystals certainly do not impair this piece in any way. 6.4 x 5.7 x 5.3 cm

Product details

SizeSmall Cabinet
Dimensions6.4 x 5.7 x 5.3 cm
Added on10/23/2024
LocalityUSA, Minnesota

Known provenance

DateCollectorAcquisition price
08/2024Unknown OwnerNot disclosed
The ArkenstoneNot disclosed

Learn more

Prehnite
Mineral guide
Learn about Prehnite
apple- to mint-green crystals and sculptural botryoidal/rosette forms; a calcium aluminum silicate formed in low-temp hydrothermal environments.
Regional guide
Prehnite from Minnesota
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