| 31. | Ciner controls the world's second largest trona ( soda ash ) reserve, via Eti Soda.
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| 32. | Watching a show on the train 7551 derailment, I got to wondering about the trona it was carrying.
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| 33. | Of Trona's 87 boys ( in a four-year enrollment of 152 ), 55 play football.
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| 34. | High levels of evaporation have left behind natron ( sodium carbonate decahydrate ) and trona ( sodium sesquicarbonate dihydrate ).
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| 35. | The Green River Basin contains the world's largest known deposit of trona ore near Green River, Wyoming.
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| 36. | The Trona Pinnacles, at an elevation of above sea level, are located approximately south of Trona, California.
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| 37. | The Trona Pinnacles, at an elevation of above sea level, are located approximately south of Trona, California.
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| 38. | The main line extends in a northeasterly direction from Searles to Trona, a distance of 30.364 miles.
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| 39. | A renewed mining boom, this time for coal and trona led to the reopening of the school in 1973.
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| 40. | Now, the underground network of trona-mining roads and rooms is as large as the city of San Francisco.
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