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Search for specimens: View all gold specimens from Olinghouse Mining District, Nevada, USA
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å質ã¯çµæ¶åãéæŸåºŠãæãããåºè³ªå¯Ÿæ¯ã§å€æããããæé«ã®ãªãªã³ã°ããŠã¹æšæ¬ã¯ãã€ã¶ãããæ±ãããããããã«èŠãããéãã¯ã€ã€ãŒãŸãã¯èç¶ã®ãã¯ã¹ãã£ãã¯ã£ãããšç€ºãã¹ãã§ãããéã¯åºè³ªäžãŸãã¯åºè³ªå ã«æç¢ºã«åããŠããã¹ãã§ãå¹³ããæã¿ã®ããã«èŠããã¹ãã§ã¯ãªããç³è±äžã®å€ç«ããã¯ã€ã€ãŒãçŸããå·£ç¶ã¯ã©ã¹ã¿ãç·è²ã®é¢šåç«å±±å²©äžã«ããæšæ¬ããŸãã¯çé žã«ã«ç³ãæºãããçé«èããé²åºããéã¯ç¹ã«æãŸãããææã¯ãã°ãã°æ·¡ããšã¬ã¯ãã©ã ã§ãããããçµéšè±å¯ãªã³ã¬ã¯ã¿ãŒã¯æ·±ãé»è²ãæ¬ ããŠããããšã ããçç±ã«æšæ¬ãæžç¹ããªãã代ããã«ãä¹±ãã®ãªã圢ã匷ãå æ²¢ããããŠèª¬åŸåãããªãªã³ã°ããŠã¹ç¬ç¹ã®è³ªæãæ±ããã## Collector Notes
Olinghouse specimens are locality-sensitive. A loose nest of pale electrum without matrix can be beautiful, but it is easier to misattribute than a piece on the districtâs characteristic green altered volcanic matrix with calcite, quartz, or zeolite association. Old labels from the late-1990s find, Scott Kleine-associated material, Alta Gold Mine labels, 813 pit labels, and documented collection histories carry real importance.
The most common âtreatmentâ issue is preparation by acid etching, not artificial enhancement. Many specimens originally had gold enclosed or partly enclosed in calcite; dissolving the calcite exposed the wires and leaves that collectors prize. That preparation is normal for the locality, but it should be disclosed. Residual acid or incomplete neutralization can create condition problems, especially where minor copper sulfides are present. A documented Mindat photo note describes an Olinghouse electrum-wire specimen originally in decayed white laumontite and calcite, etched in hydrochloric acid, then developing a green copper bloom after neutralization, probably from microscopic chalcopyrite. Buyers should inspect prepared pieces for powdery residue, green or white blooms, soft decayed zeolite, and any unnatural-looking cement or repair.
Condition can be deceptively fragile. Fine wires may bend, mat down, or break with careless handling. Leafy surfaces can be flattened or abraded. Laumontite is prone to dehydration and decay, so specimens retaining laumontite or zeolitic matrix should be kept in stable, dry conditions and handled minimally. Calcite remnants may be acid-etched, roughened, or partly dissolved; this is not necessarily damage, but over-etching can leave gold unsupported and matrix unattractive.
Color change is another locality-specific concern. Because much Olinghouse gold is electrum-rich, tarnish can darken the surface over time. A pale or slightly tarnished Olinghouse specimen is not automatically inferior, and in some cases tarnish supports the interpretation of electrum. However, blackened or unevenly stained pieces should be assessed under magnification to distinguish natural tarnish, dirt, iron oxides, and chemical residue from post-collection problems.
Rarity is relative. Olinghouse is not a one-specimen locality; many thumbnails and small miniatures entered the market after the 1990s finds. But the supply was finite, the mine is not currently a specimen-producing collecting site, and top examples are increasingly locked in collections. Small pieces still appear through dealer inventories, auctions, and old collections, while rich, well-composed miniatures and cabinet specimens are much less common. Recent auction records show a broad range: small thumbnail or miniature examples can trade in the low hundreds, while an exceptional cabinet specimen with a prominent elongated spinel-twinned crystal and good matrix provenance sold for several thousand dollars.çå£ãªåéå®¶ã«ãšã£ãŠãçæ³çãªãªãªã³ããŠã¹ç£æšæ¬ã«ã¯äžã€ã®èŠçŽ ãããïŒ1990幎代åŸå以éã®ãªã«ã¿ provenanceïŒåºæïŒã®ç¢ºèšŒãçµæ¶åŠçèå³ããããé²åºããå°äœéã»èç¶éããããŠå°è³ªåŠçç©èªãèªãåºè³ªãéã¯å²©ç³ã«ãµããããèŠããã¹ãã§ããµãããã®ããã«èŒã£ãŠããã®ã§ã¯ãªããåºè³ªã¯ãã®ãããå·ã®ç£å°ãç¹åŸŽã¥ããç«å±±æ§ã»æ¹è§£ç³-ç³è±-ãŒãªã©ã€ãã®é 眮ã瀺ãã¹ãã§ããã## Stories & Field Notes
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çŸä»£ã®æšæ¬è©±ã¯ãå€ãããŒã ãšã»ãŒåæ§ã«çªç¶ã§ãããAlta Goldã®1998ã2000幎ã®ãªãŒãã³ãããäœæ¥ã¯ããªãªã³ã®ãã·ã¥ãã³ã¬ã¯ã¿ãŒã®éæå°ã«ãã埮现ãªã¯ã€ã€ãšãã¹ãéãé²åºããããæè¯ã®ææã¯ãé±ç³ã«éå ãããããšãé¿ããããããã«ã¯æ¡æäœæ¥ããæãããã2000幎4æãçŽ3äžãã³ãªã³ã¹ã®éçç£ãçµãåŸãAlta Goldã¯ç Žç£ããæ°æéã®éç¥ã ãã§ææ¥ã忢ãããéåžå Žã®äžå®å®ããçç£ã®ã°ãã€ããå瀟ã®è²¡æ¿é£ããã®äºä»¶ãçµãããããããããæšæ¬ã®éºç£ã¯ãã§ã«ãªãŒãã£ãŒããããè¶ããŠæ¡æ£ããŠãããã¯ã€ã€ããã¹ããèãã€ã¬ã¯ãã©ã èãäžçäžã®åèµæãžãšæµã蟌ãã§ããã## ããã©ã«åŠçèšé²ãšåºçç©
Scott Kleine, âSpecimen Gold from the Olinghouse District, Washoe County, Nevada,â Rocks & Minerals, 79(1), 44â54, 2004 â Olinghouseæšæ¬éã®éµãšãªãåéå®¶åãèšäºã§ãMindatããã³åŸã®ç£å°åç §ã§åŒçšãããã
Marcus Lieberman, âGold Mineralization at Olinghouse, Nevada,â Rocks & Minerals, 64(5), 397â403, 1989 â 1990幎代åŸåã®æšæ¬äººæ°ä»¥åã®å°åºã®éã®é±åãèšé²ããåæã®èšäºã
Mindat: Olinghouse Mining District, Washoe County, Nevada â èšé²ãããé±ç©ãªã¹ãããµãããŒã«ãªãã£ãåç §ãã®ã£ã©ãªãŒããŒãžãå«ãå€§èŠæš¡ãªå°åºããŒãžã
Mindat: 813 pit, Alta Gold Mine, Olinghouse Mining District â ã¯ã©ã·ãã¯æšæ¬ãŸãŒã³ã®å¿ é ãµãããŒã«ãªãã£ããŒãžã§ãâZeolite veinâããŒããšèšé²é±ç©ãå«ãã
Mindat specimen record H26-0YT: Native Gold, 813 pit, Alta Gold Mine â Scott Kleineã³ã¬ã¯ã·ã§ã³æèµã®éç®ãã¹ããã«äºéæ¶ãã¯ã€ã€ãŒã䌎ã9.3cmã®Olinghouseæšæ¬ã®èšé²ã
Rob Lavinsky / Wikimedia Commons: Gold and calcite, 813 pit, Olinghouse District â éå±çµæ¶ãšã«ã«ãµã€ãããé²åºããOlinghouseéçµæ¶ãšã¯ã€ã€ãŒã瀺ã7.3cmæšæ¬ã®èªç±å©çšç»åã
Castor, Stephen B., and Gregory C. Ferdock, Minerals of Nevada, Nevada Bureau of Mines and Geology Special Publication 31, 2004 â Olinghouseçš®ã®èšé²ãå«ãå·å šäœã®é±ç©åŠçãªãã¡ã¬ã³ã¹ã
USGS Bulletin 1356: Maureen G. Johnson, Placer Gold Deposits of Nevada, 1973 â ãããå·ã® placerå°åºã®é£éŠãªãã¡ã¬ã³ã¹ãOlinghouse placerã®æèãå«ãã
USGS Open-File Report 86-407: Gary B. Sidder, Mineral Deposits of the Reno 1° x 2° Quadrangle, Nevada, 1986 â Renoåååã®å°åé±åºãã¬ãŒã ã¯ãŒã¯ã
Nevada Bureau of Mines and Geology Map 157: Geologic Map of the Olinghouse Quadrangle, Washoe County, Nevada â Olinghouse quadrangleããã³åšèŸºã®ç«å±±æ§åž¯ã®å°è³ªå³ãªãœãŒã¹ã
Nevada Division of Environmental Protection: 327 Apex Mine Project Fact Sheet, 2025 â çŸåšã®èŠå¶ææžã§ãçŸä»£ã®327 Apex/Olinghouseãããžã§ã¯ãã®ç¶æ³ãæŽå²ãåŠçèšç»ãäžæçééç¶æ³ãèŠçŽã## ãããªãé²èЧæ å ±ãšå€éšãªã³ã¯
Mindat: ãªãªã³ããŠã¹é±åº â é±åºã®é±ç©äžèЧããµãããŒã«ã©ãã£ããã©ãã®ã£ã©ãªãŒã®æãè¯ãåºçºç¹ã
Mindat: 813 pit, Alta Gold Mine â å€å žæšæ¬çç£åãšããŒãªã©ã€ãèãã«ã€ããŠæãæçšãªããŒãžã
Western Mining History: Olinghouse Mine â MRDSæ§åŒã®é±å±±æŽå²ãå°è³ªãåèµéãéçºãåèæç®ã®æçãªèŠçŽã
Western Mining History: Olinghouse Placers â ãªãªã³ããŠã¹ããã©ã³ã¯ã»ããªãŒãã¿ã€ã¬ãŒæžè°·ã® placer 瀊åºã«é¢ããæçšãªèæ¯æ å ±ã
Nevada State Historic Preservation Office: Olinghouse Historical Marker â ãšãªã¢ã®åæçç£ãæœèšãçåœã ã£ããããééãªã©ãç°¡æœã«è§£èª¬ããæŽå²çæšèã®èšé²ã
Forgotten Nevada: Olinghouse â æ°èèšäºæç²ãçŸå°èгå¯ãã¢ã¯ã»ã¹æ³šæãçºåã®ããŒããå«ãè±å¯ãªæŽå²çç·šçºã
Northern Nevada Business Weekly: âHistoric mining camp of Olinghouse thrived in Renoâs shadowâ â çºãè£œéŒæãééãçŸåããå»å¢ã«ã€ããŠã®èªã¿ãããæ å²èšäºã
Nevada Canyon Gold: Olinghouse Royalty â ãã€ã€ãªãã£ã®çŸç¶ãæŽå²çè³æºããŒã¿ãæäœè æ å ±ã®äŒæ¥èŠçŽã
JSJ Geology: Olinghouse Mine Gold â å€è³ªå®å±±å²©äžã®æŽçããããªãªã³ããŠã¹éãšæšæ¬æ§åŒã®èŠçŽã瀺ãæè²ããŒãžã