Tag: aragonite

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 […]

La Grasta Mine Aragonite

La Grasta Mine Aragonite

I’ve just acquired this La Grasta Mine Aragonite from Minershop. Mark Cole writes: The La Grasta mine in Sicily operated from the mid-1800 until 1930. Workers carried ore out on their backs. In the 60’s the mine was reopened, renovated and worked until 1987.  The […]

Eastern Hemisphere Rocks

Eastern Hemisphere Rocks

Langban Sweden Langban rocks have some of the brightest fluorescence found. That brightness is often in sharp contrast to a dark to black background. These hand sized specimens are bright and impressive with: calcite – bright red svabite – bright yellow dolomite – bright pink […]

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. […]