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aamukherjee Entropie -
alchymista Alchymista -
crownedrose Hymn To The Sea -
epistemophobiarunsdeep Falling Over Myself. -
expose-the-light Quarks to Quasars -
ikenbot cwl -
pieceinthepuzzlehumanity This Is The Right One -
project-argus Hello, Universe. -
torgothegreat God Delusion
Orpiment Macro (with Calcite) by cobalt123 on Flickr
crownedrose
Haüyne, (Na,Ca)4-8(Al6Si6(O,S)24)(SO4,Cl)1-2
Locality: Germany
“Velvet” Malachite (photo source)
This is what I was eyeing yesterday (not this exact specimen, but one like it). It looks like velvet from a short distance, but in turn is actually very fine needle-like crystals (called acicular).
Pretty sure this is Labradorite!
Chalcopyrite with Dolomite from Missouri by Dan Weinrich
Tourmaline on Quartz from California by Exceptional Minerals
Fluorite (by crownedrose)
Here’s the latest addition to my fossil & mineral collection! I always love getting new specimens, and this fluorite was totally needed. It’s quite a nice size as well, with those big cubes which is always desired.
(by Marmontel)
The Ijen volcano complex is a group of stratovolcanoes, in East Java, Indonesia. It is inside a larger caldera Ijen, which is about 20 kilometers wide. The Gunung Merapi stratovolcano is the highest point of that complex. The name of this volcano resembles that of a different volcano, Mount Merapi in central Java, also known as Gunung Merapi. The name “Merapi” means “fire” in the Indonesian language.
West of Gunung Merapi is the Ijen volcano, which has a one-kilometer-wide turquoise-colored acid crater lake. The lake is the site of a labor-intensive sulfur mining operation, in which sulfur-laden baskets are carried by hand from the crater floor. Many other post-caldera cones and craters are located within the caldera or along its rim. The largest concentration of post-caldera cones forms an east/west-trending zone across the southern side of the caldera. The active crater at Kawah Ijen has an equivalent radius of 361 metres (1,184 ft), a surface of 0.41 square kilometres (0.16 sq mi). It is 200 metres (660 ft) deep and has a volume of 36 cubic hectometres (29,000 acre·ft).
