| name | gold-washing |
| locale | wenyan-ultra |
| source_locale | en |
| source_commit | 82c77053 |
| translator | Julius Brussee homage — caveman |
| translation_date | 2026-04-24 |
| description | Alluvial gold recovery using panning, sluicing, and classification. Covers site reading (geological indicators, stream dynamics, pay streak location), panning technique, sluice box operation, and responsible extraction practices. Use when prospecting in an area with known or suspected alluvial gold deposits, sampling a stream to test for gold presence, maximizing recovery during recreational panning, or assessing a site's gold potential before investing more effort.
|
| license | MIT |
| allowed-tools | Read |
| metadata | {"author":"Philipp Thoss","version":"1.0","domain":"prospecting","complexity":"intermediate","language":"natural","tags":"prospecting, gold, panning, sluicing, alluvial, placer, geology"} |
淘金
以盤、溜、分選回收沖積金。
用
- 於已知或疑有沖積金之地探勘
- 取溪試金
- 休閒淘金欲得最大回收
- 試地金潛力，再投力
入
- 必：金盤（14-16 寸，有紋）
- 必：溪、河或沖積地
- 可：分選篩（1/4 寸目）
- 可：溜箱（大量處理）
- 可：吸瓶或鑷（細金回收）
- 可：瓶與水（存金）
- 可：鏟桶（取料）
行
一：讀地
金重（比重 19.3），沉積可預。察水與地形再掘。
Where Gold Concentrates:
INSIDE BENDS:
Water slows on inside curves of a stream. Heavy materials
(including gold) drop out of suspension here. Sample the
gravel bar on the inside of bends.
BEHIND OBSTRUCTIONS:
Large rocks, fallen trees, and bedrock ledges create
low-pressure zones behind them. Gold settles in these
"shadow" areas.
BEDROCK CRACKS:
Gold works its way into cracks and crevices in bedrock.
Cleaning out bedrock cracks (crevicing) can be very productive.
PAYSTREAKS:
The heaviest concentration follows a line (paystreak) along
the inside of the bend, continuing from one inside bend to the
next. Experienced prospectors trace this line.
WHERE TO SAMPLE:
+--------------------+------------------------------------------+
| Feature | Sample Location |
+--------------------+------------------------------------------+
| Inside bend | 1-2 feet above waterline in gravel bar |
| Behind boulder | Downstream side, in the calm pocket |
| Bedrock exposure | In cracks and depressions |
| Stream confluence | Where tributary meets main stream |
| Old flood channels | Elevated terraces above current stream |
+--------------------+------------------------------------------+
Geological Indicators:
- Black sand (magnetite/hematite): gold's travel companion.
Where black sand concentrates, check for gold.
- Quartz veins in surrounding rock: gold often forms in
quartz veins; erosion releases it into streams
- Iron staining (rust-colored rock): indicates oxidation zone,
which can host gold deposits
得：依溪動與地質指標辨 2-3 有望之取樣點。
敗：無明顯指標→系統取多點——各特徵一盤（內彎、障後、隨礫壩）。即一片金屑亦證溪含金。
二：分選取料
備原料供淘。
Collection Protocol:
1. Fill a bucket from your chosen sample location
2. Dig to bedrock if possible — gold concentrates on or near bedrock
3. If bedrock is deep, sample the bottom 6-12 inches of gravel
(gold migrates downward through gravel over time)
Classification:
1. Place a 1/4 inch classifier over your gold pan or bucket
2. Shovel material onto the classifier
3. Shake and wash through — fine material drops into the pan,
large rocks and gravel remain on top
4. Inspect oversized material briefly (nuggets can be caught
by the classifier) then discard
5. Classified material is now ready for panning
