Daily Geology Photos – March 31
Updated: 2011-03-31 17:20:04
A summary of photos posted on flickr today, tagged with “geology.” Displayed below are 12 geology-related photos were added to flickr today. Similar Posts on Geology News: Daily Geology Photos – September 23 Daily Geology Photos – May 10 Daily Geology Photos – May 19 Daily Geology Photos – May 21 Daily Geology Photos – [...]

Opal is a hydrous silicate that forms as a precipitate or a replacement of the skeletons of marine organisms.
Sulfur is a bright yellow to yellowish-brown, soft mineral being only a 1.5 to 2.5 on the Mohs hardness scale.
Volcanic Breccia is a unique extrusive igneous rock that is has large, angular fragments stuck in a fine-grained rock background. This rock forms during an eruption when when rock fragments are plucked off of the inside wall of the volcano and are stuck in the lava, or when rock fragments are picked up from the ground by flowing lava.
Sandstone forms from beach sand-sized quartz grains that are glued together with quartz or calcite or compressed until they harden into a rock.
Amethyst is the purple form of the mineral quartz. Fairly hard, amethyst is a 7 on the Mohs hardness scale. Amethyst is always purple and has a shiny appearance.
Happy New Year and a big Thank You to everyone who helped make 2010 a great year here at Mini Me Geology.
Our end of the year sale is on at Mini Me Geology. Save 50% on all jewelry and home accents. Quantities are limited so order early.
Green Money PIG_blog photoWe are thrilled to announce two new promotions for this holiday season involving both twitter and facebook - Twitter Tuesdays and Facebook Fridays!
On the Planetary Society web site: Great News About Messenger
We are excited to offer the mineral biotite on our website now. Biotite is a common mica mineral that is black to brownish-black in color.