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Key facts
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Regional View
Country View
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Photo: Wikimedia Commons / Rob Lavinsky, iRocks.com

Photo: Wikimedia Commons / Rob Lavinsky, iRocks.com
Search for specimens: View all specimens from R. A. Kosnar claim, USA
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æåã®çèŽåé¡ã¯ locality precisionïŒç£å°ã®æ£ç¢ºãïŒã§ãããLake GeorgeããCrystal PeakããPikes Peak batholithããYucca HillããR. A. Kosnar claimããR. A. Kosnar #7 Prospectãã¯äºææ§ã®ããã©ãã«ã§ã¯ãããŸãããæ¬ç©ã® Kosnar ç±æ¥æšæ¬ã¯ãColorado amazoniteã以äžã«ç¹å®ã®æ¥æŽãæã€ã¹ãã§ãæã説åŸåã®ããäŸã¯æ§ã Kosnar å®¶ç³»ãDave BergmanãiRocks/ArkenstoneãMineralAuctionsããŸã㯠Mindat ã«çŽã¥ãèšé²ã§è£ä»ããããŠããå¿ èŠããããŸããåºã Lake George ã©ãã«ã®ã¿ã®æšæ¬ã¯çŽ æŽãããå¯èœæ§ããããŸãããæç®ãªãã« Kosnar ã®äž»åŒµãžãšã¢ããã°ã¬ãŒããã¹ãã§ã¯ãããŸããã
æ¬¡ã®æžå¿µã¯åŸ©å ã§ããPikes Peak batholith ç±æ¥ã® Colorado amazoniteâsmoky quartz ã®çµã¿åããã¯ãè£åŽã®é²åºã§é·ç³ãšç³è±ãåé¢ãããããããšããé åçãªçµã¿åãããåžå ŽäŸ¡å€ãé«ããããšããããããã«æž æã»æŽåœ¢ã»æ¥çã»ä¿®åŸ©ã»å®å®åãããŠããããšãæåã§ãããã¹ãŠã® Kosnar-claim ã®çµã¿åããã修埩ãããŠãããšä»®å®ããå¿ èŠã¯ãããŸããããè³Œå ¥è ã¯çµæ¶ã®æ¥åéšãå°åº§ãå€ãæ¬ ããé·ç³ã®çµç«¯éšãç³è±ã®æ¥è§ŠãåçããããŠç¢ºèªãã¹ãã§ãã修埩ãããŠããªãããã©ã³ã¹ã®åããçµã¿åããââç¹ã«ãã£ãããããµã€ãºã®ãã®ââã¯ãèŠãç®ã䌌ãŠããåŸ©å æ¿ãããèããåªããæšæ¬ã§ãã
ã³ã³ãã£ã·ã§ã³ã¯ amazonite ã«ãšã£ãŠéèŠã§ããé·ç³ã®è§ã®çžã®æŠãåããçµç«¯éšã®ææ²ãèé¢ã®å²ããéããŸã㯠etch ãããç®æã¯äŸ¡å€ãå€§å¹ ã«äžããå¯èœæ§ããããŸããäžæ¹ã§ãæž æœãªãã«ãŒã°ãªãŒã³ã®è²ãã·ã£ãŒããªåœ¢ãçœãçãçœããã£ãããé åç㪠albite ãŸãã¯ç³è±ã®é 眮ã¯é åãé«ããŸãã smoky quartz ã¯åæ¥çã»åããã»çµç«¯éšã®æ¬ ãã»æ¥çãããæ ¹ããã§ãã¯ããå¿ èŠããããŸãã hematite-after-siderite ããã³ goethite ã®æšæ¬ã¯ã埮现ãªåãéãåœåœ¢ edge ãæŠèã«åŒ±ãããåãæ±ãã«æ³šæãå¿ èŠã§ããéé žåç©ã¯ãæããéå±å æ²¢ã®è¡šé¢ãéããšå°ããªãã¡ãŒãžãèŠèŠçã«é¡èã«ãªããŸãã
èå 㯠classic Kosnar-claim amazonite ã®æ±ºå®çç¹åŸŽã§ã¯ãããŸããããLake George åšèŸºã®é·ç³ããã³ albite æšæ¬ã¯çæ³¢é·çŽ«å€ç·å¿çã瀺ãããšããããé¢é£ããäžéšã®æšæ¬ã§ã¯é·ç³ã albite ã«ãã³ã¯ããèµ€ã¿ã®èå ãèŠãããããšããããŸããèå ã¯èªèšŒã®äž»ãªææ®µãšããããã远å çãªèгå¯ãšããŠæ±ãã¹ãã§ãã
åžå Žã§ã®å ¥æå¯èœæ§ã¯èãããéåããããšã¯ãããŸãããå€ã Kosnar-claim ã®ãµã ãã€ã«ããããã¥ã¢ã¯ããã£ãŒã©ãŒã®åšåº«ããªãŒã¯ã·ã§ã³ã®ã¢ãŒã«ã€ããéããŠå®æçã«æµ®äžãããã°ãã° Brian KosnarãRichard KosnarãTresa KosnarãDave BergmanãiRocksããŸã㯠Arkenstone ç±æ¥ã§ããããšããããŸãã匷è²ã® amazonite ãš smoky quartz ã¯äŸç¶ãšããŠæãæµåæ§ã®é«ãææã§ãã hematite-after-sideriteãgoethiteâfluoriteããããŠããŸãæ§æãããéé žåç©ã®é¢é£æšæ¬ã¯ããåžå°ã§ãç¹ã«1970幎代åŸåã1980幎代ã®ç¹å®ã®å鿥ã瀺ã Colorado ã®ã³ã¬ã¯ã¿ãŒã«èšŽæ±ããŸãã
R. A. Kosnar ã®æš©å©äž»åŒµã«é¢ããæ±ºå®çãªçŸå Žã¹ããŒãªãŒã¯ã1976幎8æã®ã¢ããŸãã€ãçºèŠã§ããçåæšæ¬ã®èšé²ã¯ç°åžžã«äžè²«ããŠãã: è€æ°ã®ç ŽçããåŸã«ã³ãã©ãå·ã®éèŠãªã³ã¬ã¯ã·ã§ã³ããã£ãŒã©ãŒã®ã¢ãŒã«ã€ããéããŠåæ£ããããã®æããªãã£ãŒãã»ã³ãºããŒãæš©å©äž»åŒµã« attributed ããæé«è²ã®ã¢ããŸãã€ããååããç¬éã§ããããšã瀺ããŠããŸãããµã€ãºããã3.8 à 2.5 à 2.2 cm ã®å°ããªæšæ¬ã«ã¯ãçºèŠã®èªåœã®ã»ãŒå šãŠããããã¥ã¢ã§è©°ãŸã£ãŠããŸãïŒéãéç·è²ã®ã¢ããŸãã€ããå®ç³ã®ãã㪠smoky quartzãçœã albiteããããŠãã€ãŠã®ãªãã£ãŒãã»ã³ãºããŒã»ã³ã¬ã¯ã·ã§ã³ã®åºæãå¥ã® 3.6 à 2.7 à 1.5 cm ã® piece ã¯ãå æ²¢ã®ããã¢ããŸãã€ãçµæ¶ã®åºéšã«æ·¡ãã©ã€ã©ãã¯è²ã®èç³ãšãã rarer ãªã¢ã¯ã»ã³ããå ãããã±ãã系統ãåãªãé·ç³ãšç³è±ã§ã¯ãªããã³ãã©ãå·ã®å°éå®¶ãèŠããŠããçš®ã®å¯ç£ç©ã®çµã³ã€ããçã¿åºãããšã蚌æããŠããŸãã
1976幎ã®çŽ æã¯ãçŸåšã³ã¬ã¯ã¿ãŒãå³åº§ã« Kosnar æš©å©äž»åŒµã®äžéšãšããŠèªèããçœåžœåãšæ¢çŽã®ã¢ããŸãã€ããçã¿åºããŸããã äžã€ã®ãªãŒã¯ã·ã§ã³ã§å° cabinet ãµã€ãºã®çµæ¶ã¯ 5.3 à 4.3 à 3.1 cm ã§ãçœãåžœåãšå°ã㪠smoky quartz ãç¹åŸŽãšããéãéç·è²ã®ã¢ããŸãã€ããšèª¬æãããŸãããå¥ã®ããã¢ãã¥ã¢ã4.3 à 3.7 à 2.7 cm ã¯ãçµæ¶è»žã«æ²¿ããªããã¯ã€ãã®ã¹ãã©ã€ãã³ã°ã瀺ããŸããããããã¯åãªãè£ é£Ÿçãªçã§ã¯ãããŸãããLake George ã®ã¢ããŸãã€ãã«ãããŠãæ·¡ãã¹ãã©ã€ãã³ã°ãšåžœåã¯çµæ¶ã®ã¢ã€ãã³ãã£ãã£ãäžããèšæ¶ã«æ®ãæšæ¬ãšåãªãè²åœ©è±ããªé·ç³ãåºå¥ããã®ã«åœ¹ç«ã¡ãŸãã
éé žåç©ãã±ããã¯å¥ã®ç« ãèªããŸãã1977幎å€ããªãã£ãŒãã»ã³ãºããŒã¯ç¡«åé-é žåéç³»ã®ææãæ¡éããŸããããããã¯äžèŠãããšæåãªã¢ããŸãã€ãã®æšæ¬ãšã¯ã»ãšãã©ç°ãªãããã«èŠããŸãã6.2 à 3.7 à 3.6 cm ã®æšæ¬ã«ã¯ãéãéå±ã°ã¬ãŒã® pseudomorphs after siderite ãããããã®æå€§éšã¯çŽ 1.0 cmãæ·±ãç æ quartz ã®ããªãºã é¢ã«æ²¿ã£ãŠå°ããªãã³ã¯ãšçœã®åŸ®æé·ç³ã®äžã«ä¹ã£ãŠããŸããå¥ã® 3.2 à 2.1 à 2.0 cm ã®æšæ¬ã¯ãåãé±ç©åŠçã¢ã€ãã¢ãããã³ã³ãã¯ãã«ç€ºããŠããŸã: siderite ã®è±åœ¢ã hematite ã«çœ®æãããå¯Ÿç §çãªåŸ®æé·ç³ã®äžã«åº§ã£ãŠããŸããæ¬ä»£æ¿çµæ¶ãæããã³ã¬ã¯ã¿ãŒã«ãšã£ãŠããããã¯æš©å©äž»åŒµã®äžã§æãç¹åŸŽçãªåã®äžã€ã§ããã䟡å€ã¯çµæ¶ã以åäœã§ãã£ããã«ããã®ãšåæ§ã«ãçŸåšäœã§ãããã«ããããŸãã
1978幎å€ãŸã§ã«ã¯ãæš©å©äž»åŒµã¯å¥ã®å€å žçãªæ¬ä»£æ¿çµæ¶ã®çµåããçã¿åºããŸããã4.8 à 3.8 à 3.3 cm ã®ããã³ã¯ã®åŸ®æé·ç³ã®äžã« hematite ã«çœ®æãããéã siderite åœ¢çµæ¶ã®ã°ã«ãŒãã§ãæå€§ã®æ¬ä»£æ¿ã¯çŽåŸ 1.3 cmãããã§æ¥ä»ãšåºæã¯éèŠã§ããåžå Žã«ã¯å€ãã® Lake George ã©ãã«ãæŒããŸããããªãã£ãŒãã»ã³ãºããŒæ¬äººã®æ¡éãšç¹å®ã®å€ 1978 幎ã®å忥ãšçµã³ã€ããæšæ¬ã¯ããã確åºããæŽå²çå°äœãå ããŠããŸãã
1980幎8æã®çºèŠã¯åã³æ³šç®ãéããä»åºŠã¯é žåéé±ç©ã®ããŽãµã€ããžãšåããããŸãããå¹ 4.3Ã奥è¡3.3Ãé«3.2 cmã®æšæ¬ã¯ãéãéé»è²ã®ããŽãµã€ãã®éç¶çµæ¶ãšå®ç³ã®ãããªè玫è²èç³ãçµã¿åããããã®ã§ãå°åãšããŠã¯çããçµã¿åãããšããŠæ³šç®ãããŸãããå¥ã®å¹ 4.0Ã奥è¡3.7Ãé«2.3 cmã®ããŒã¹ã¯ãéè²ã®ããŽãµã€ãã®åŽåºãšéå±ç°è²ã®èµ€éé±ãã£ã¹ã¯ãçµã¿åãããŠããŸãããããã¯éåžžã®ã¢ããŸãã€ãâã¹ã¢ãŒããŒã»ã¯ã©ãŒãã®ç©èªãè¶ ããŠåºãã蚌æ ãšãªãæšæ¬ã§ãããäž»ãªé·ç³-ç³è±ã®ã·ã§ãŒãã»ãŒçµäºããåŸã«ããåããã±ããç°å¢ãéåãè±å¯ãªåŸæã®é±åãžãšç§»è¡ããç¹çްãªåŽåºãåœæ©åãèç³ã®ã¢ã¯ã»ã³ãã圢æããããããšã瀺ããŠããŸãã