Uploaded December 2025 | Updated September 2026, 1 week ago
🎁 We’re giving away a Gold Monster 1000, a Keene 140S dry washer (blower + hose), a Keene puffer dry washer, and 10 bags of paydirt from our drift mine.
Hit the icon at the end of the video — make a $10 pledge and you qualify to get your hands on it.
Fluorite is more than a pretty crystal — it can be an indicator mineral for GOLD. Today we go inside an old mine, follow fissure veins and basalt dikes, smell heavy sulfur, and hit the blacklight to reveal glowing fluorite + calcite in the cracks.
In this episode I break down hanging wall vs footwall, fault planes, contact zones, parallel veins, and why old-timers drove crosscuts where they did. You’ll see how hydrothermal fluids altered the host rock, where manganese oxides show up, and why the best mineral assemblages often sit along the hanging wall and chill margins.
⚠️ SAFETY NOTE: Old mines can collapse and contain bad air. Don’t enter without proper training, gear, and a partner/spotter.
👍 Smash that like button, subscribe, and drop a comment: Do you collect fluorite, or do you use it as a gold indicator?
00:00 Mining for Fluorite
00:45 Waterfall Gold Traps
01:20 Faults, Dikes & Structure
02:40 Hydrothermal Alteration
03:55 Sulfur Smell & Heat
05:10 Old Miner Crosscuts
06:20 Natural Fissures
07:35 Calcite, Manganese & Fluorite
08:45 Parallel Veins
10:00 Fluorite GLOWS (Blacklight)
11:20 Vein Junctions
12:45 Barren Rhyolite
14:00 Alteration Clues
15:20 Backfilled Drifts
16:40 Boiling Zones
18:20 Gold Target Zones
19:30 Dendritic Iron
21:00 Stoping Areas
22:10 “Gibson Hair” Explained
23:40 Mine Safety Warning
25:00 Dikes & Chill Margins
26:30 Missed Gold
27:45 Sampling Strategy
29:10 Contact Zones
30:30 Fluorite as a Gold Clue
33:00 Giveaway Details
34:00 Outro
#askjeffwilliams #gold #prospecting #mining #geology
🎁 We’re giving away a Gold Monster 1000, a Keene 140S dry washer (blower + hose), a Keene puffer dry washer, and 10 bags of paydirt from our drift mine.
Hit the icon at the end of the video — make a $10 pledge and you qualify to get your hands on it.
Fluorite is more than a pretty crystal — it can be an indicator mineral for GOLD. Today we go inside an old mine, follow fissure veins and basalt dikes, smell heavy sulfur, and hit the blacklight to reveal glowing fluorite + calcite in the cracks.
In this episode I break down hanging wall vs footwall, fault planes, contact zones, parallel veins, and why old-timers drove crosscuts where they did. You’ll see how hydrothermal fluids altered the host rock, where manganese oxides show up, and why the best mineral assemblages often sit along the hanging wall and chill margins.
⚠️ SAFETY NOTE: Old mines can collapse and contain bad air. Don’t enter without proper training, gear, and a partner/spotter.
👍 Smash that like button, subscribe, and drop a comment: Do you collect fluorite, or do you use it as a gold indicator?
00:00 Mining for Fluorite
00:45 Waterfall Gold Traps
01:20 Faults, Dikes & Structure
02:40 Hydrothermal Alteration
03:55 Sulfur Smell & Heat
05:10 Old Miner Crosscuts
06:20 Natural Fissures
07:35 Calcite, Manganese & Fluorite
08:45 Parallel Veins
10:00 Fluorite GLOWS (Blacklight)
11:20 Vein Junctions
12:45 Barren Rhyolite
14:00 Alteration Clues
15:20 Backfilled Drifts
16:40 Boiling Zones
18:20 Gold Target Zones
19:30 Dendritic Iron
21:00 Stoping Areas
22:10 “Gibson Hair” Explained
23:40 Mine Safety Warning
25:00 Dikes & Chill Margins
26:30 Missed Gold
27:45 Sampling Strategy
29:10 Contact Zones
30:30 Fluorite as a Gold Clue
33:00 Giveaway Details
34:00 Outro
#askjeffwilliams #gold #prospecting #mining #geology
