Cassiterite by Samuel Clark https://padlet.com/samuel_clark/66av00xpj9b8 My Corrupt Mineral en-us 2017-02-08 21:01:26 UTC 2026-02-25 01:16:13 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Growing.png samuel_clark https://padlet.com/samuel_clark/66av00xpj9b8/wish/152625320 Cassiterite]]> 2017-02-08 21:11:49 UTC https://padlet.com/samuel_clark/66av00xpj9b8/wish/152625320 samuel_clark https://padlet.com/samuel_clark/66av00xpj9b8/wish/152626224 The mineral name is derived from the term “Cassiterides," which was applied to an island off the western coast of Europe in pre-Roman times. The primary ore of tin, this mineral is found in hydrothermal veins and pegmatites associated with granite intrusions. The chief use of tin is in the manufacture of tin plate and tern plate.

http://www.mineralogy4kids.org/mineral/cassiterite]]> 2017-02-08 21:15:54 UTC https://padlet.com/samuel_clark/66av00xpj9b8/wish/152626224 samuel_clark https://padlet.com/samuel_clark/66av00xpj9b8/wish/152626448 Formula: 
SnO2
Hardness: 
6 - 7
Color: 
Black, yellow, brown, red or white
Streak Color: 
Brownish white, white, greyish
Crystal System: 
Tetragonal
Group: 
Oxides

http://www.mineralogy4kids.org/mineral/cassiterite
]]> 2017-02-08 21:17:04 UTC https://padlet.com/samuel_clark/66av00xpj9b8/wish/152626448 samuel_clark https://padlet.com/samuel_clark/66av00xpj9b8/wish/152626996 Countries rich in minerals such as cobalt, coltan, cassiterite, copper, and gold are often marred by corruption, authoritarian repression, militarization, and civil war. Rebel groups, governments and mining companies exploit mineral resources, fueling civil and interstate conflict as players vie for control over riches. Countries such as the Democratic Republic of Congo have fallen victim to rebels who use revenue from minerals such as diamonds, coltan and cassiterite to purchase arms and fuel conflict. Governments often establish repressive military regimes in mineral producing regions to protect their "national interests," but local populations rarely see the profits and are subjected to environmental damage wrought by corporations. The articles and analyses below follow the dark nexus between mineral riches and bloody conflict.


]]> 2017-02-08 21:19:47 UTC https://padlet.com/samuel_clark/66av00xpj9b8/wish/152626996 samuel_clark https://padlet.com/samuel_clark/66av00xpj9b8/wish/152635830 2017-02-08 22:07:28 UTC https://padlet.com/samuel_clark/66av00xpj9b8/wish/152635830 samuel_clark https://padlet.com/samuel_clark/66av00xpj9b8/wish/152637291 2017-02-08 22:16:01 UTC https://padlet.com/samuel_clark/66av00xpj9b8/wish/152637291 Congo samuel_clark https://padlet.com/samuel_clark/66av00xpj9b8/wish/152638480 Frederic Gautier has been thinking a lot about death recently. The miner, from South Kivu, in eastern Democratic Republic of Congo (DRC), thought about it as he cowered under his bed to escape a deadly ambush at his mine. The thought returned when he was subsequently captured by armed men and forced to carry stolen minerals on his back through the forest.

http://www.independent.co.uk/news/world/africa/conflict-minerals-bringing-death-to-the-democratic-republic-of-congo-as-eu-plans-laws-to-clean-up-10255483.html]]> 2017-02-08 22:22:51 UTC https://padlet.com/samuel_clark/66av00xpj9b8/wish/152638480 samuel_clark https://padlet.com/samuel_clark/66av00xpj9b8/wish/152638837 Cassiterite is a tin oxide mineral SnO2and it is the chief tin ore throughout ancient history and the most important source of tin. It can be found in alluvial or placer deposits containing the resistant weathered grains. It is used to produce tin cans for food container, electronic industry, an alloy for bearing metal and as an alloy in metallic coatings. Inorganic compounds of tin are used in ceramics and glazes. Organic compounds of tin are used in plastics, wood preservatives, pesticides and in fire retardants. Cassiterite has high economic value because it has advantageous combinations of a low melting point, malleability, resistance to corrosion and fatigue, and ability to alloy with other metals. It is also non-toxic and easy to recycle. It occurs in both primary and secondary deposits. Primary deposits are associated with granite intrusive and secondary deposits derive from the weathering and erosion of primary tin deposits.

]]> 2017-02-08 22:25:34 UTC https://padlet.com/samuel_clark/66av00xpj9b8/wish/152638837 samuel_clark https://padlet.com/samuel_clark/66av00xpj9b8/wish/152639922 2017-02-08 22:35:38 UTC https://padlet.com/samuel_clark/66av00xpj9b8/wish/152639922 Value samuel_clark https://padlet.com/samuel_clark/66av00xpj9b8/wish/152641272 Cassiterite has tremendous dispersive fire, much more than diamond, that is visible in properly cut pale-colored gems. This lighter-colored material is, however, very rare except in small fragments. Cassiterite is a fine gemstone – it is rather hard, and there is no cleavage problem. It is unfortunate that cuttable rough is so scarce. Cassiterites under 5 carats are not among the rarest of rare stones, but large clean gems definitely are.

https://www.gemsociety.org/article/cassiterite-jewelry-and-gemstone-information/]]> 2017-02-08 22:45:31 UTC https://padlet.com/samuel_clark/66av00xpj9b8/wish/152641272 ginger ginger gingers are amazing https://padlet.com/samuel_clark/66av00xpj9b8/wish/153183951 2017-02-10 21:11:15 UTC https://padlet.com/samuel_clark/66av00xpj9b8/wish/153183951 Ginger chunklet is life sutherlund https://padlet.com/samuel_clark/66av00xpj9b8/wish/153201401 2017-02-11 02:52:13 UTC https://padlet.com/samuel_clark/66av00xpj9b8/wish/153201401