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The iron bands are harder than the surrounding sandstone and create ridges as the softer material is more quickly sandblasted away—just like the material would erode in nature
some with smoky-quartz coloration
Small lumpy pieces of magnetite are sprinkled through the epidote and make the specimen heavy
The hyalite on this specimen may be "hidden" on the bottom
Smoky quartz with hyalite on black tourmaline Picture jasper The iron bands are harderLocale: Erongo Mountain, Namibia Approx dimensions: 4. 25 x 3 x 2" Approx weight: 437g ** Loose piece on base Smoky quartz from the Erongo region is typically a quite dark brown black color, with lower clarity due to natural inclusions, and a flat surface luster caused by etching. This piece is a bit lighter than usual with some crystal faces glassy clear, providing a window inside. Erongo smoky grows sculptural angular points with nice striations
