Laumontite in unaltered primary crystals is actually extremely rare, though most people don't think of this fact when they see all the Indian minerals and wonder where the laumontite went...anyways, it is definitely very rare form the San Diego pegmatites where zeolite pockets are few and far between. These crystals are excellent for the locality and for a US laumontite in general. 4.5 x 3 x 2.3, 4 cm