Rocks, Minerals & Ores
Mineral Sequence in the Cady Mountains
Fluorite (round) on quartz
CaF2Cady Mountains, Mojave Desert, CA
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Mineral Sequence in the Cady Mountains
In the Cady Mountains of California’s Mojave Desert, a rare and beautiful sight awaits—rounded fluorite crystals resting atop quartz. Unlike the common cubic or octahedral forms, these spherical fluorite shapes are the result of unusual growth conditions where mineral chemistry, space, and cooling rates came together just right. These rounded forms often sit on quartz crystal beds, creating a striking contrast between the fluorite’s smooth contours and the sharp edges of the quartz. This combination not only makes for a visually captivating specimen but also offers a glimpse into the geologic history of the region. Formed in volcanic cavities through slow deposition of hydrothermal fluids, these minerals reflect the desert’s long history of heat, pressure, and subtle transformation. For collectors and geologists alike, this pairing is both scientifically intriguing and visually memorable—a true Mojave Desert gem.