 | | Catalog/List | | Design District Showroom 1518 Slocum Street • Dallas, TX 75207 Heritage Auctions Design District Showroom...Gold Nugget Bullfrog Mountains Death Valley Nevada, USA This unique and complex Gold nugget is rather leafy...wonderful duality of simple shape, yet intense surface area, giving the representation from Death Valley a most...Gold Crystal Windy Point Mine Humboldt Co. Nevada, USA This brassy Gold specimen from the Windy Point Mine... 72011 Gold Red Ledge Mine (Bank Mining Company), Mack House Alleghany Mining District (Forest Mining |  | | Book (edition) | | OX5 1 GB, UK 225 Wyman Street, Waltham, MA 02451, USA Copyright © 2015, 2008 Elsevier B.V. All rights reserved...sometimes red tinges, cobalt shows pink shades, while iron displays pronounced tones of red, brown, and...specimens. Left: Internal reflections of hematite (red), azurite (blue), and malachite (green). Common...(bottom): Polysynthetic hematite twinning under XPL, red internal reflections are also visible. 5 Twinning...filling. Right (second from top): Late proustite (red internal reflections) filling quartz druse (milky); |
|
