View allAll Photos Tagged Periphery
This image is copyright © 2015 Riley Taylor. All rights reserved. This photo may not be used under ANY circumstances without written consent. Please contact riley@rileytaylorphoto.com for usage rights.
(interiorities)(peripheries: 2
March 2014-April 2014
All eyes on me; I see I saw
Chua Chin Chin
As the casual viewer peeks through the side window looking into The Substation Gallery, the painted fabric eye sculptures (All eyes on me), hung over the 5-foot-way of The Substation, observe the viewer in sinister silence. Visitors who step towards the gallery, are hindered by a handcrafted see-saw (I see I saw), emplaced out-of-place, in the foyer. They beg the questions: just who/what is the viewer/viewed, and is the act of viewing, ever-present?
Periphery
La Scène Bastille, Paris
19.02.11
Julien Perez for www.verdammnis.com
Copyright Julien Perez - Contactez moi avant toutes utilisations - cette photo est protégée par le droit d'auteur.
Copyright, please do not use without written consent. If you would like to have use of one of my images for a publication, gallery, or otherwise please email info@shutter16.com for information on obtaining use.
August 26th, 2016 - Periphery performs live at Saint Andrews Hall in Detroit, Michigan. Credit: Mirak Habbiyyieh. www.schwegweb.com
Periphery & Animals As Leaders @ Brooklyn Bowl 11.22.2017
2017 © Fred Morledge - www.PhotoFM.com
For licensing or prints of these images, please contact Fred@PhotoFM.com
Black areas along periphery = chalcocite (Cu2S)
Grayish-white = calcite (CaCO3)
Pinkish-brown to whitish at bottom margin = quartz (SiO2)
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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 6000 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.
The sulfide minerals contain one or more sulfide anions (S-2). The sulfides are usually considered together with the arsenide minerals, the sulfarsenide minerals, and the telluride minerals. Many sulfides are economically significant, as they occur commonly in ores. The metals that combine with S-2 are mainly Fe, Cu, Ni, Ag, etc. Most sulfides have a metallic luster, are moderately soft, and are noticeably heavy for their size. These minerals will not form in the presence of free oxygen. Under an oxygen-rich atmosphere, sulfide minerals tend to chemically weather to various oxide and hydroxide minerals.
Chalcocite is a significant copper ore mineral having the formula Cu2S - copper sulfide. It has a metallic luster, a dark gray to black color and streak, no obvious cleavage, is moderately heavy for its size, and is moderately soft (H = 2.5 to 3). Chalcocite is found with other copper minerals such as chalcopyrite. It usually forms in the near-surface, secondary enrichment zone at and below the water table, in areas having copper mineralization. It also occurs as a primary mineral in some hydrothermal veins.
The specimen seen here is from northern Michigan's White Pine Mine and was hosted by the Nonesuch Formation, a 1.07 to 1.08 billion years old, nonmarine, mixed siliciclastics unit. The Nonesuch Formation here has been partially mineralized with native copper (fracture fillings or scattered, small, intergranular masses or partially replacing bulk rocks) and chalcocite.
Locality: main ore body of the White Pine Mine, Upper Peninsula of Michigan, USA
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Locality info. at:
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Photo gallery of chalcocite:
Periphery & Animals As Leaders @ Brooklyn Bowl 11.22.2017
2017 © Fred Morledge - www.PhotoFM.com
For licensing or prints of these images, please contact Fred@PhotoFM.com