Tag: chalcedony

Southern Arizona Fluorescent Minerals

Southern Arizona Fluorescent Minerals

Arizona! What a great place to collect fluorescent minerals. In addition to the usual bright calcite, willemite, fluorites and scheelites, Southern Arizona glows with some very unusual calcite, caliche, chalcedony. These unusual specimens, with their combination of colors and textures, are beautiful in both natural […]

Western United States Rocks

Western United States Rocks

Hogan and Purple Passion Claims Arizona These ugly appearing, palm to hand sized rocks are interesting geologically. And they are spectacularly fluorescent. Fluorescent rocks from the Hogan and Purple Passion Claims are some of the world’s best. fluorite – blue calcite – dull red to […]

Wyoming Rocks

Wyoming Rocks

Pacer Pegmatite The fluorescent minerals at the Casper Mountain pegmatite are mineralogical mutts. They are comprised of admixtures of quartz, albite, and small trace amounts of other pegmatite minerals that gradually grade into each other. Few large, distinct crystals are found. Not too interesting mineralogically. […]