In appearance this galena specimen resembles an Oreo cookie with galena on both sides of a calcite layer. Intergrown, splendent crystals of metallic galena form the bottom/matrix of this piece, draped by a vein of colorless, sparkling calcite crystals. Topping the specimen are large, complexly formed crystals of galena, to 2.5 cm in length. The combination makes a dramatic contrast to display the galena, and a true mineral oddity in its overall appearance. This specimen was on loaned exhibit in the University of Arizona Museum for over a decade until my purchase of this collection in 2008. Ex. Dr. Miguel Romero Collection.
мубодилот намудан – копӣ, паҳн ва фиристадани асар
ремикс кардан – татбиқи кор
Under the following conditions:
тахсис – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
саҳми яксон – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
This work is free and may be used by anyone for any purpose. If you wish to use this content, you do not need to request permission as long as you follow any licensing requirements mentioned on this page.
The Wikimedia Foundation has received an e-mail confirming that the copyright holder has approved publication under the terms mentioned on this page. This correspondence has been reviewed by a Volunteer Response Team (VRT) member and stored in our permission archive. The correspondence is available to trusted volunteers as ticket #2010022810018255.