View allAll Photos Tagged graphite
graphite on paper.
i'm beginning a new "prophecy" series...it's of things i'm afraid of coming to pass and things that i want to come to fruition.
Graphite from Ceylon (Sri Lanka).
A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical composition and having fairly definite physical properties. At its simplest, a mineral is a naturally-occurring solid chemical. Currently, there are over 5900 named and described minerals - about 200 of them are common and about 20 of them are very common. Mineral classification is based on anion chemistry. Major categories of minerals are: elements, sulfides, oxides, halides, carbonates, sulfates, phosphates, and silicates.
Elements are fundamental substances of matter - matter that is composed of the same types of atoms. At present, 118 elements are known (four of them are still unnamed). Of these, 98 occur naturally on Earth (hydrogen to californium). Most of these occur in rocks & minerals, although some occur in very small, trace amounts. Only some elements occur in their native elemental state as minerals.
To find a native element in nature, it must be relatively non-reactive and there must be some concentration process. Metallic, semimetallic (metalloid), and nonmetallic elements are known in their native state.
The element carbon principally occurs in its native state as the minerals graphite (C) and diamond (C). Graphite is the common & far less valuable polymorph of carbon. Graphite has a metallic luster and a silvery-gray color. It is very soft (H = 1), has a slick, greasy feel, and readily marks paper. Graphite does have cleavage, but it is not apparent at the hand specimen scale. The ability of graphite to mark paper, its softness, and its greasy feel are all a consequence of cleavage sheets easily slipping over each other on a microscopic scale.
Locality: unrecorded / undisclosed site in Ceylon / Sri Lanka (attributed to "Colombo")
Used the world over in pencils, graphite is a mineral of pure carbon. The United States Geological Survey estimates over a million tons of graphite are currently mined every year around the world.
Credit: Smithsonian Digital Studios
Graphite on vellum, approximately 75" x 38". Drawn blindly while listening to an 13-minute field recording of a cab ride from downtown Cairo to the island of Zamalek. Right side = right hand = right ear, left side = left hand = left ear.
Because what good is having a weird looking plant if I don't draw it? I'm hoping to do a value study of it (using crosshatching and whatnot) on Wednesday.
Microsoft Surface Book skin kit series - Carbon Fiber!!
Now available for purchase!!
Click on the link below to make your purchase:
www.stickerboy.net/collections/microsoft-surface-book-ski...