An interesting crystal of apatite, a satellite of neptunite, from California
Authors:
Abstract
A. E. Kupffer, 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 dense blue color, developed in combinations of a typical rhombic crystal with four very sharp pyramids (see the article).
Область исследования:
Geology
Funding:
None