An interesting crystal of apatite, a companion of neptunite, from California
Authors:
Abstract
A. E. Kupffer, while crushing the rock from San Zenito in California, which contains almost black and rather large neptunite crystals in abundance, isolated, among other things, an excellently formed crystal of a rather deep blue color, developed in combinations typical of a rhombic crystal with four very sharp pyramids (see the article).
Область исследования:
Geology
Funding:
None