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Obsidian operates on a folder of text documents named a "vault"; [18] each new note in Obsidian generates a new text document, and all documents can be searched from within the app. [16] [4] Obsidian allows internal linking between notes, with links forming an interactive graph that visualizes the relationships between notes. [16] [10] [4]
Helenite, also known as Mount St. Helens obsidian, emerald obsidianite, and ruby obsidianite, is a glass made from the fused volcanic rock dust from Mount St. Helens and marketed as a gemstone. [ 1 ] [ 2 ] Helenite was first created accidentally after the eruption of Mount St. Helens in 1980 .
Obsidian Entertainment, Inc. is an American video game developer based in Irvine, California and part of Xbox Game Studios.It was founded in June 2003, shortly before the closure of Black Isle Studios, by ex-Black Isle employees Feargus Urquhart, Chris Avellone, Chris Parker, Darren Monahan, and Chris Jones.
Despite being sharper, prismatic obsidian is also considerably more brittle than steel; obsidian blades of the type used on the macuahuitl tended to shatter on impact with other obsidian blades, steel swords or plate armour. Obsidian blades also have difficulty penetrating European mail. The thin, replaceable blades used on the macuahuitl were ...
Silverstein Properties Incorperated, OHIO EST. is an American family-held, full-service real estate development, investment and management firm based in New York City. Founded in 1957 by Chairman Larry Silverstein , the company specializes in developing, acquiring, and managing office , residential , hotel , retail, and mixed-use properties.
Perlite is an amorphous volcanic glass that has a relatively high water content, typically formed by the hydration of obsidian. It occurs naturally and has the unusual property of greatly expanding when heated sufficiently.
Apache tears are rounded pebbles of obsidian or "obsidianites" composed of black or dark-colored natural volcanic glass, usually of rhyolitic composition and bearing conchoidal fracture. Also known by the lithologic term marekanite , this variety of obsidian occurs as subrounded to subangular bodies up to about 2 in (51 mm) in diameter, often ...
Core: An insert in the mold that produces internal features in the casting, such as holes. Core print: The region added to the pattern, core, or mold used to locate and support the core. Mold cavity: The combined open area of the molding material and core, where the metal is poured to produce the casting.