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was supplied by Mark Bostick himself and his name and signature came on the certificate with the coin
Origin: Mogila Mine
they are referred to as olivine volcanic bombs
Its dimensions are 54x27x22 mm
Pseudomorph Turquoise After Apatite | Perky Box Thumbnail Specimen | Sonora, Mexico Siderite was supplied by Mark BostickA pseudomorph occurs when one mineral replaces another but retains the original mineral's crystal structure. In the case of turquoise after apatite pseudomorph, turquoise replaces apatite, but it still retains apatite's crystal shape. This process leads to a visually fascinating specimen where the exterior shape looks like apatite crystals, but the composition and color are distinctly turquoise, often with the bright blue or green shades typical of
