PoorSucker Posted March 28, 2019 Share Posted March 28, 2019 Bought two stones from a Buddha dealer. The drop shaped looks like a tektite, what's the other one. Non magnetic. Link to comment Share on other sites More sharing options...
rak sa_ngop Posted March 28, 2019 Share Posted March 28, 2019 The first one definitely looks like a classic tektite 'drop' composed of dirty glass from the condensation of vapourised earth material following a meteor impact (but not the meteor material itself). I have a very similar shaped and textured example and they seem to be pretty common finds in Thailand. Is the second one the same density? Can you tell from its heft if you bounce it in your hand? Glass is much lighter than most rocks you find lying around. It looks like it has a very similar pocked texture to the first sample. Probably a tektite as well but not 100 pc sure just going by the photos. 1 1 Link to comment Share on other sites More sharing options...
PoorSucker Posted March 28, 2019 Author Share Posted March 28, 2019 1 hour ago, rak sa_ngop said: Is the second one the same density? Can you tell from its heft if you bounce it in your hand? Glass is much lighter than most rocks you find lying around. It looks like it has a very similar pocked texture to the first sample. Probably a tektite as well but not 100 pc sure just going by the photos. Same density, defenitly not a tektite. No glass surface, looks more like pure silver ore. Link to comment Share on other sites More sharing options...
PoorSucker Posted March 28, 2019 Author Share Posted March 28, 2019 1 hour ago, rak sa_ngop said: Probably a tektite as well but not 100 pc sure just going by the photos. Other photos in sun. Link to comment Share on other sites More sharing options...
malathione Posted March 29, 2019 Share Posted March 29, 2019 Possibly micaceous schist, the second one. Possible mica of the muscovite variety. Hard to tell from these photographs. 1 Link to comment Share on other sites More sharing options...
Thongkorn Posted March 29, 2019 Share Posted March 29, 2019 (edited) Manganese, if it is hard and if you hold it you get your hands covered in black like lead from a Pencil, They use it in Steel manufacturing, I have seen carvings done from lumps of it. If you polish it it comes up shinning, Edited March 29, 2019 by Thongkorn Link to comment Share on other sites More sharing options...
Lacessit Posted March 29, 2019 Share Posted March 29, 2019 1 hour ago, Thongkorn said: Manganese, if it is hard and if you hold it you get your hands covered in black like lead from a Pencil, They use it in Steel manufacturing, I have seen carvings done from lumps of it. If you polish it it comes up shinning, Manganese ore is heavy. Link to comment Share on other sites More sharing options...
Popular Post atyclb Posted March 29, 2019 Popular Post Share Posted March 29, 2019 i disagree, clearly kryptonite 1 4 Link to comment Share on other sites More sharing options...
Skeptic7 Posted March 30, 2019 Share Posted March 30, 2019 (edited) 12 hours ago, atyclb said: i disagree, clearly kryptonite Nope, K is green & crystalline! Edited March 30, 2019 by Skeptic7 1 Link to comment Share on other sites More sharing options...
Rockhound Posted March 30, 2019 Share Posted March 30, 2019 The second one could be Molybdenite or Stibnite? Link to comment Share on other sites More sharing options...
PoorSucker Posted March 31, 2019 Author Share Posted March 31, 2019 Thanks all. It does leave any resedue like Manganese. Stibnite seems the closest call. Link to comment Share on other sites More sharing options...
richard_smith237 Posted April 3, 2019 Share Posted April 3, 2019 ...its surely Fubarite... Link to comment Share on other sites More sharing options...
Stocky Posted April 3, 2019 Share Posted April 3, 2019 On 3/31/2019 at 1:21 PM, PoorSucker said: Stibnite seems the closest call. Stibnite has a specific gravity of around 4.6g/cm3, whilst tektite, which is largely silica, has an SG of about 2.6 - if you're saying they have a similar density then it's clearly not stibnite. Have worked out the hardness? Does it leave a streak, if so what colour? Is it magnetic? Link to comment Share on other sites More sharing options...
PoorSucker Posted April 3, 2019 Author Share Posted April 3, 2019 2 hours ago, Stocky said: Stibnite has a specific gravity of around 4.6g/cm3, whilst tektite, which is largely silica, has an SG of about 2.6 - if you're saying they have a similar density then it's clearly not stibnite. Have worked out the hardness? Does it leave a streak, if so what colour? Is it magnetic? No streak, still silver, not magnetic Link to comment Share on other sites More sharing options...
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