Laumontite

Laumontite specimens for sale

8 for sale ยท $25โ€“$1,500 USD

37 in the gallery

Laumontite is a hydrated aluminosilicate mineral that forms distinct, tabular to prismatic crystals and often occurs as aggregates in vesicular volcanic rocks. It typically presents a color range from colorless to pale white, yellow, or pinkish hues, with a vitreous to pearly luster that can highlight its well-formed crystal faces. Common habit includes slender prisms and plate-like crystals that can build delicate clusters, sometimes filling cavities in basalt and other volcanic rocks.

Formula
CaAl2Si4O12 ยท 4H2O
Rarity
Common
Stability
Stable
Collector interest
Moderate Interest
Classification notes
Framework silicate (tectosilicate); Zeolite group

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Where Laumontite is found

About Laumontite

Collectors prize laumontite for its crisp crystal geometry and the variety of localities that produce well-crystallized specimens. Notable specimens come from classic mining areas around the world, including districts in the USA, India, the UK, China, and Russia, where the mineral can be found in zeolite-rich deposits and as secondary mineral from alteration of feldspars. The appeal lies in its rarity of perfect terminations, the contrast of color against white matrix, and the way it records hydrothermal conditions from which it formed.