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In some stones, the inclusion of small, white, radially clustered crystals (spherulites) of the mineral cristobalite in the black glass produce a blotchy or snowflake pattern (snowflake obsidian). Obsidian may contain patterns of gas bubbles remaining from the lava flow, aligned along layers created as the molten rock was flowing before being ...
An opal doublet consists of a relatively thin layer of precious opal, backed by a layer of dark-colored material, most commonly ironstone, dark or black common opal (potch), onyx, or obsidian. The darker backing emphasizes the play of color and results in a more attractive display than a lighter potch.
Actinolite. Nephrite (var.); Adamite; Aegirine; Afghanite; Agrellite; Algodonite; Alunite; Amblygonite; Analcime; Anatase; Andalusite. Chiastolite; Andesine ...
Specifically, blue and other darker shades continue to be described as black, yellow and orange colors are classified with red, and other bright colors continue to be classified with white. In the Bambara language , there are three color terms: dyema (white, beige), blema (reddish, brownish), and fima (dark green, indigo, and black).
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A South Dakota man is facing murder and manslaughter charges after police say he killed a woman and decapitated her. According to court documents obtained by PEOPLE, Craig Allen Nichols Jr., 32 ...
"Black seed oil is an omega-3 and omega-6 oil, and in general, that's healthy. But we've never shown omega-3 and omega-6 to truly cause weight loss—most studies have been conducted on animals ...