Class: Silicates
Group: Zeolite
Original description: ‘Natrolith’ Klaproth, M. H., 1803. XV. Chemische Untersuchung des Natroliths — Der Gesellschaft Naturforschender Freunde zu Berlin, Neue Schriften 4: 243—248 [
view in ‘Library’].
Type locality: Hohentwiel, Singen, Hegau, Baden-Württemberg, Germany.
Type material: unknown.
Etymology: from the Latin natron, for the sodium content.
Distribution: Canada; France; Germany; Norway; Russia: Kola Peninsula; USA: Bound Brook, New Jersey (
Anthony et al., 2001—2005).
Chemistry
Na2[Al2Si3O10]·2H2O
Essential elements: hydrogen (H), oxygen (O), sodium (Na), aluminium (Al), silicon (Si).
Crystal data
Crystallography: orthorhombic — pyramidal.
Crystal habit: crystals short to long prismatic, to 1 m.
Twinning: on {110}, {011}, {031} (
Anthony et al., 2001—2005).
Material from ‘Repository’
1 specimen: 0588 — 1.03 ct, USA, New Jersey, Somerset County, Bound Brook.
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