Crack These Rocks — And Gold Might Be Inside! — Transcript

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1. 0:00[Music]
2. 0:06What if the key to finding gold wasn't
3. 0:08hidden, but laying right beneath your
4. 0:10feet in plain sight? Not gold itself,
5. 0:13but the rocks that always lead to it.
6. 0:16Long before a single nugget glistens
7. 0:18under the pan or a detector beeps with
8. 0:21excitement, nature whispers. And those
9. 0:24whispers often come from rocks. Not
10. 0:26flashy, not metallic, but rugged
11. 0:29geological messengers that consistently
12. 0:32show up where gold hides. These rocks
13. 0:35don't just suggest possibility, they
14. 0:37scream, "Gold is near." Yet, most people
15. 0:40pass them by. Today, we're peeling back
16. 0:42the Earth's crust and reading the
17. 0:44ancient script etched in stone. If
18. 0:47you've ever dreamed of prospecting gold
19. 0:49without a map, this guide is your
20. 0:51compass. One, quartz, the gateway vein.
21. 0:55It's often milky, sometimes clear,
22. 0:58occasionally streaked with iron or
23. 1:00fractures. Quartz isn't rare, but its
24. 1:03relationship with gold is sacred. Quartz
25. 1:05veins are Earth's pressure lines formed
26. 1:08by hydrothermal fluids pushing through
27. 1:10fissures. As they cool, quartz
28. 1:12crystallizes, and if conditions were
29. 1:14right, gold settled in, too. That's why
30. 1:17so many goldbearing areas from
31. 1:19California's mother lode to Western
32. 1:21Australia are riddled with quartz,
33. 1:23especially the kind with iron stained
34. 1:25fractures. The redder the veins, the
35. 1:28greater the chance you're near something
36. 1:29special. But beware, not all quartz is
37. 1:32created equal. Gold doesn't travel
38. 1:34alone. It chooses quartz as a hiding
39. 1:37place when the chemistry matches. That's
40. 1:39why prospectors often break open even
41. 1:41the ugliest quartz because sometimes
42. 1:43inside the dullest shell lies visible
43. 1:46gold. Two iron stained rocks, nature's
44. 1:50highlighter pen. What's rusty, oxidized,
45. 1:53and usually ignored? Iron stained rocks.
46. 1:57These surfaces painted red, orange, or
47. 2:00deep brown by the oxidation of iron
48. 2:02minerals like pyite or magnetite are
49. 2:04geological beacons. They're not the
50. 2:07gold, but they highlight the
51. 2:09hydrothermal activity that often brings
52. 2:11gold along. Imagine this. Gold often
53. 2:15forms in the same system that heats up
54. 2:17and mobilizes iron rich fluids. So,
55. 2:20where iron has bled into the rocks, gold
56. 2:22might have tagged along. The trick is to
57. 2:24follow the oxidation zone. It's nature's
58. 2:27way of saying there's been heat,
59. 2:29pressure, and mineral movement here. All
60. 2:32ingredients for gold deposition.
61. 2:35Three. Shist. The ancient host. Shist
62. 2:39may not look impressive. It's flaky,
63. 2:41foliated, and sometimes sparkles due to
64. 2:44micica. But this metamorphic rock has
65. 2:46hosted gold deposits for millennia. In
66. 2:49Ethiopia, in Canada, in Australia, it's
67. 2:52there. Gold is often found in the
68. 2:54creases, faults, and fractures of shist
69. 2:57trapped as the rock shifted and morphed
70. 2:59over time. Its layers act like
71. 3:01geological books. Each page a history of
72. 3:04heat and pressure. And when molten
73. 3:06goldbearing fluids pushed through, shist
74. 3:08became a natural archive of the metal's
75. 3:10presence. If you're exploring ancient
76. 3:12mountain belts and find weathered shist,
77. 3:14it might just be worth investigating
78. 3:16deeper. Four. Serpentineite, the silent
79. 3:20indicator.
80. 3:21A greenish slick rock that looks like
81. 3:23snakes skin. Serpentineite is one of the
82. 3:26most underestimated gold indicators in
83. 3:28the field. It forms deep in the earth
84. 3:31and often occurs near fault zones, prime
85. 3:34paths for hydrothermal gold bearing
86. 3:36fluids. In fact, serpentonite doesn't
87. 3:38just appear randomly. It's tied to
88. 3:40tectonic activity, which is also
89. 3:42responsible for many rich gold zones.
90. 3:45Places like California's Sierra Nevada
91. 3:47foothills are known for serpentineite
92. 3:49rich zones. And guess what? They also
93. 3:51hold massive quartz veins and gold. Look
94. 3:55for serpent tonite in older terrains
95. 3:57where faults crosscut the terrain. It
96. 3:59may not carry gold itself, but it's part
97. 4:02of the neighborhood where gold likes to
98. 4:03live. Five goins, the crust of gold
99. 4:08secret. They look like rusted scars on
100. 4:11the landscape. Reddish, sometimes yellow
101. 4:13brown crusts on top of rocks. These are
102. 4:16goins. They form when sulfide rich ore
103. 4:19bodies near the surface oxidize. And
104. 4:21while the sulfides get leeched away,
105. 4:24something precious sometimes remains
106. 4:26trapped underneath gold. Historically,
107. 4:29some of the world's richest mines, like
108. 4:31those in the American Southwest in
109. 4:33Western Australia, were discovered by
110. 4:36identifying Gossson. They're like
111. 4:38burnout shells of once rich systems. A
112. 4:40Gossson doesn't guarantee gold, but it
113. 4:43absolutely demands a second look.
114. 4:45Scratch below and you may uncover the
115. 4:48real story. Six. Black sands. The final
116. 4:52clue near water. You've probably seen it
117. 4:54in gold panning videos. That heavy dark
118. 4:57layer at the bottom of the pan. Black
119. 4:59sand made mostly of magnetite and other
120. 5:02heavy minerals. Black sands signal a
121. 5:05riverbed or stream channel where heavier
122. 5:07elements settle. And gold loves this
123. 5:10company. While black sands aren't rocks
124. 5:12per se, they represent the final sorting
125. 5:14zone where the light is carried away in
126. 5:17the dense remains. If black sand shows
127. 5:19up in quantity, keep going. Check
128. 5:22upstream, scan the banks, test nearby
129. 5:25rocks, because black sand is the
130. 5:28sedimentary whisper that gold might just
131. 5:30be within reach. Seven, riolyte, the
132. 5:33volcanic stage for gold's arrival.
133. 5:36Riyolyte is a fine grain volcanic rock,
134. 5:38often light colored, sometimes with
135. 5:40visible crystals. Why does it matter?
136. 5:43Because in many volcanic belts, riyolyte
137. 5:45is the platform on which goldbearing
138. 5:47systems emerge. These rocks often hold
139. 5:50epiothermal gold deposits formed by hot
140. 5:52mineral-rich waters moving through
141. 5:54cracks. If you're in volcanic terrain
142. 5:57and come across riolyte, especially with
143. 5:59quartz veining or iron staining, it's
144. 6:02time to investigate. Many low
145. 6:04sulfidation gold deposits right on
146. 6:05Realite's back. The gold might be
147. 6:07microscopic, but it's still there,
148. 6:10hiding in the gaps and grains. But we're
149. 6:12not done. We'll go deeper into rocks
150. 6:15that don't just indicate gold, but
151. 6:17sometimes hosted invisibly. From granite
152. 6:20secrets to the unexpected clues of
153. 6:22conglomerates, we'll explore the subtle
154. 6:24signs and hidden hints that seasoned
155. 6:26prospectors never ignore. Because when
156. 6:29it comes to finding gold, nature always
157. 6:31leaves a trail. You've just scratched
158. 6:33the surface of Earth's oldest treasure
159. 6:35map. The rocks don't lie, they whisper.
160. 6:38And if you know how to listen, they'll
161. 6:39guide you to where gold still waits
162. 6:41untouched. These are the stones seasoned
163. 6:44prospectors chase when the obvious signs
164. 6:46disappear. Eight. Conglomerates,
165. 6:49nature's gold trap. Imagine ancient
166. 6:52riverbeds long turned to stone.
167. 6:54Conglomerates are exactly that, cemented
168. 6:57gravels and pebbles fused by pressure
169. 6:59and time. And in many cases, they've
170. 7:02locked away aluvial gold within them.
171. 7:05The most famous example, the Witwaters
172. 7:08Rand Basin in South Africa. Source of
173. 7:10over 40% of all the gold ever mined on
174. 7:13Earth and it's entirely hosted in
175. 7:15conglomerate rock. Look for rounded
176. 7:18pebbles bound by sandy or quartzrich
177. 7:20matrix. If you're in a gold producing
178. 7:22region and spot conglomerate outcrops,
179. 7:25test them. Some may still carry fine
180. 7:27gold trapped in the layers where water
181. 7:29once flowed. Nine. Greenstone belts,
182. 7:33Earth's ancient gold reservoirs.
183. 7:35Greenstone belts aren't single rocks,
184. 7:37but ancient volcanic and sedimentary
185. 7:39suites metamorphosed over billions of
186. 7:41years. These belts stretch across parts
187. 7:43of Canada, Australia, and Africa. And
188. 7:46many of them are laced with gold. The
189. 7:48rocks here are dark, sometimes chlorite
190. 7:51rich, and often heavily deformed by
191. 7:53tectonic forces. Gold forms here not by
192. 7:56chance, but because of the deep heat,
193. 7:59pressure, and mineral flows that
194. 8:01dominated Earth's earliest history. If
195. 8:03you're hunting in terrains older than 2
196. 8:06billion years, and you come across
197. 8:08greenstone, especially interlayered with
198. 8:10quartz or shist, you've stepped into
199. 8:13some of Earth's richest historical gold
200. 8:15zones. 10. Granite, the invisible
201. 8:18partner. Granite isn't usually the star
202. 8:21of the show. It's intrusive, speckled,
203. 8:23and hard. But granite often plays a
204. 8:26critical role in gold's formation. Why?
205. 8:29Because it's a heat engine. Granite
206. 8:31intrusions heat up surrounding rock,
207. 8:34driving hydrothermal fluids that carry
208. 8:36gold. Gold rarely forms in granite, but
209. 8:40close to its borders. That's another
210. 8:42story. The contact zone, where granite
211. 8:45meets surrounding rocks, is where fluids
212. 8:47move, faults intersect, and
213. 8:50mineralization thrives. So, if you're
214. 8:52trekking across granite country, don't
215. 8:54dismiss it. Map the contact zones. Look
216. 8:58for quartz veining and iron staining
217. 9:00near granite sediment boundaries. That's
218. 9:02where the magic may begin. 11. Ma shist.
219. 9:06The glittering mask. With its reflective
220. 9:09sheen, mica shist can easily trick the
221. 9:12eye. But beneath its sparkle lies more
222. 9:14than vanity. Mica shist often hosts
223. 9:17narrow quartz veins rich in minerals,
224. 9:19including gold, particularly in regions
225. 9:21with historical metamorphic belts like
226. 9:24the Appalachian Range or parts of the
227. 9:26Alps. Micah Shis plays host to some of
228. 9:28the finest pocket gold discoveries. But
229. 9:31here's the trick. Don't be fooled by
230. 9:33Micah's glitter. Use a magnifier. Look
231. 9:36for needle-like crystals or minet yellow
232. 9:38flakes embedded in quartz within the
233. 9:40skist. Mica may mask it, but gold
234. 9:43doesn't hide forever. 12. Dolorite and
235. 9:46diorite dikes. The vertical vessels.
236. 9:50These fine to medium grained intrusive
237. 9:52rocks are often found in vertical dikes,
238. 9:54sheets cutting through older rocks. Gold
239. 9:57doesn't form in doarite or diorite
240. 9:59themselves. But these formations often
241. 10:02act as conduits for hydrothermal fluids.
242. 10:05In parts of Ghana, Brazil, and Canada,
243. 10:07doite dikes are closely associated with
244. 10:10gold mineralization. When a gold bearing
245. 10:12fluid moves, it follows the cracks. And
246. 10:15these dikes are the perfect host for
247. 10:16fractures. If you're prospecting and you
248. 10:19see a dolerite sheet or diorite dyke
249. 10:21intersecting quartz or iron stain zones,
250. 10:24test the contact. That's where gold may
251. 10:26have pulled. 13. Pyite fool's gold, real
252. 10:31gold's companion. The shiny brassy
253. 10:34mineral often dismissed as fool's gold
254. 10:36might just be your smartest lead. While
255. 10:39pyite itself isn't gold, it often grows
256. 10:41in the same conditions and even carries
257. 10:44microscopic gold within its crystal
258. 10:46structure, especially in sulfide rich
259. 10:49zones. Testing pyite samples can reveal
260. 10:51invisible gold content through fire
261. 10:54assays or crushing and panning. In
262. 10:56Nevada and Peru, some mines extract gold
263. 10:59directly from pyrite rich ores. The
264. 11:01lesson, don't ignore it. Where there's
265. 11:04pyite, gold is often a silent partner,
266. 11:06riding just beneath the surface. Gold is
267. 11:09elusive, but it's never alone. It leaves
268. 11:12footprints. It gathers friends, rocks,
269. 11:15minerals, faults, and signs that reveal
270. 11:18its path. It's up to you to notice them.
271. 11:21So, the next time you walk a dry creek
272. 11:22bed or scan a weathered slope, ask not
273. 11:25where the gold is hiding, but what signs
274. 11:28it's left behind. Quartz doesn't form in
275. 11:30isolation. Shist fractures for a reason.
276. 11:34Iron stains tell a history of water and
277. 11:36heat. If you see the clues, follow them.
278. 11:39Because gold doesn't just sparkle, it
279. 11:42speaks. At EGS Pro, we believe Earth
280. 11:45holds endless secrets. And you've just
281. 11:47learned how to listen to one of its
282. 11:49oldest voices, rocks. Don't forget to
283. 11:52subscribe, share, and hit the bell for
284. 11:55more untold truths beneath your feet.
285. 11:58Gold doesn't hide from the wise, it
286. 12:00waits. So, pick up your compass, grab
287. 12:03your pen, and let the rocks lead you.