Knowledge (XXG)

Helgustadir mine

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Being a nature reserve, tampering with the rock formations and removing crystals is forbidden. Despite that, visitors often take samples with them, causing a disruption of the area. The problem has gotten worse as tourism has increased, with some visitors filling their backpacks with samples.
227: 67:) was mined from the mid-17th century to the 20th century. It is the source of the largest and clearest known Iceland spar specimen and the source of most museum specimens of Iceland spar. 315: 364: 140:. Since 2010, it has been on the Environment Agency of Iceland's red list of areas that are likely to lose their protection status. 183: 117:
Iceland spar from Helgustadir mine was used in optical devices used in physics, chemistry, and geology, most importantly
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Crystals from this area are known for exceptional clarity, leading to the mineral being named "Iceland spar".
270: 299: 245: 73: 47: 39: 27: 106:, east of Iceland. Helgustadir mine consists of two mines, known as the upper and lower mine. 103: 95: 90: 348: 60: 118: 17: 304: 330: 317: 137: 64: 52: 123: 89: 72: 26: 228:"Helgustaðanáma – Stjórnunar- og verndararáætlun 2017–2026" 271:"Landvörður reynir að stöðva silfurbergsþjófnað" 8: 70:It was declared a nature reserve in 1975. 246:"Kristallar hverfa enn úr Helgustaðanámu" 165: 158: 233:. Environment Agency of Iceland. 2017. 46: 7: 222: 220: 218: 216: 214: 212: 210: 208: 206: 204: 178: 176: 174: 25: 300:"Helgustadir Iceland Spar Mine" 48:[ˈhɛlkʏˌstaːðaˌnauːma] 1: 94:Helgustadir mine is close to 381: 365:Protected areas of Iceland 136:The nature reserve is 0.9 102:The mine is located near 298:Russell, Daniel (2008). 63:(a form of transparent 269:runarsr (2017-06-13). 244:runarsr (2017-03-19). 128: 99: 77: 43: 32: 127: 93: 76: 30: 331:65.0336°N 13.8526°W 327: /  360:Geology of Iceland 129: 100: 78: 33: 336:65.0336; -13.8526 144:Theft of crystals 16:(Redirected from 372: 342: 341: 339: 338: 337: 332: 328: 325: 324: 323: 320: 309: 285: 284: 282: 281: 266: 260: 259: 257: 256: 241: 235: 234: 232: 224: 199: 198: 196: 195: 188:Umhverfisstofnun 184:"Helgustaðanáma" 180: 169: 163: 50: 36:Helgustadir mine 31:Helgustadir mine 21: 18:Helgustaðir mine 380: 379: 375: 374: 373: 371: 370: 369: 355:Mines in Europe 345: 344: 335: 333: 329: 326: 321: 318: 316: 314: 313: 297: 294: 292:Further reading 289: 288: 279: 277: 268: 267: 263: 254: 252: 243: 242: 238: 230: 226: 225: 202: 193: 191: 182: 181: 172: 164: 160: 155: 146: 134: 112: 88: 83: 57:east of Iceland 23: 22: 15: 12: 11: 5: 378: 376: 368: 367: 362: 357: 347: 346: 311: 310: 293: 290: 287: 286: 261: 236: 200: 190:(in Icelandic) 170: 157: 156: 154: 151: 145: 142: 133: 132:Nature reserve 130: 111: 108: 87: 84: 82: 79: 44:Helgustaðanáma 24: 14: 13: 10: 9: 6: 4: 3: 2: 377: 366: 363: 361: 358: 356: 353: 352: 350: 343: 340: 307: 306: 301: 296: 295: 291: 276: 272: 265: 262: 251: 247: 240: 237: 229: 223: 221: 219: 217: 215: 213: 211: 209: 207: 205: 201: 189: 185: 179: 177: 175: 171: 167: 162: 159: 152: 150: 143: 141: 139: 131: 126: 122: 120: 115: 109: 107: 105: 97: 92: 85: 80: 75: 71: 68: 66: 62: 58: 54: 49: 45: 41: 37: 29: 19: 312: 303: 278:. Retrieved 274: 264: 253:. Retrieved 249: 239: 192:. Retrieved 187: 166:Russell 2008 161: 147: 135: 119:Nicol prisms 116: 113: 101: 69: 61:Iceland spar 35: 34: 334: / 104:Eskifjörður 96:Eskifjörður 349:Categories 322:13°51′09″W 319:65°02′01″N 305:Mindat.org 280:2019-05-08 255:2019-05-08 194:2020-08-20 153:References 40:Icelandic 138:hectares 86:Location 65:calcite 55:in the 51:) is a 59:where 231:(PDF) 81:About 110:Uses 53:mine 275:RÚV 250:RÚV 351:: 302:. 273:. 248:. 203:^ 186:. 173:^ 42:: 308:. 283:. 258:. 197:. 168:. 121:. 98:. 38:( 20:)

Index

Helgustaðir mine

Icelandic
[ˈhɛlkʏˌstaːðaˌnauːma]
mine
east of Iceland
Iceland spar
calcite


Eskifjörður
Eskifjörður
Nicol prisms

hectares
Russell 2008



"Helgustaðanáma"









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