Sphene

$100.00

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A large lustrous mostly complete crystal of titanite measuring 3.5 x 3.3 x 0.9 cm in size on a granite matrix. In good condition. The specimen comes with a previous label from the collection of Ray DeMark.The Crystal Lode pegmatite, situated in the historic Fulford mining district of Eagle County, Colorado, is a coarse-grained granitic intrusion formed deep within the Earth during regional geological upheavals, and it is well known to modern collectors for yielding good mineral specimens like smoky quartz, titanite and apatite. Geologically, such pegmatites develop from the volatile-rich residual fluids of cooling magmas, creating environments where rare elements concentrate and massive crystals can grow.