River Wind | Naomi Sarna | Blue Topaz Gemstone Carving
735-carat, gem-quality blue topaz carving sits on a sterling silver base. River Wind is an American Gem Trade Association Spectrum Award winning carving.
Nature and more
Malachite is a green, very common secondary copper mineral with a widely variable habit. Typically it is found as crystalline aggregates or crusts, often banded in appearence, like agates. It is also often found as botryoidal clusters of radiating crystals, and as mammillary aggregates as well. Single crystals and clusters of distinguishable crystals are uncommon, but when found they are typically acicular to prismatic.
Photographs of mineral No. 41993: Copper with Malachite from Tsumeb Mine, Otavi-Bergland District, Oshikoto, Namibia
Copper with Malachite, Tsumeb Mine, Otavi-Bergland District, Oshikoto, Namibia. Arborescent formation of metallic native copper crystals up to 10 mm long with rounded coatings of velvet-like green malachite crystals. The malachite coats about half of the copper. Overall Size: 4x2x2 cm. Crystals: 0.2-10.0 mm