17:54
The (strange and unusual) sloths of the fossil record - cave divers & giants bigger than elephants
88 views • 8 days ago
23:54
Thunder Struck - the earth shaking stride and lives of the giant sauropods
126 views • 8 days ago
14:12
The rainbow world of gemstones - PESA Presents
243 views • 2 weeks ago
45:43
PESA June Garnets by Travis Steigerwalt
17 views • 2 weeks ago
21:00
Attending (or Vending) at a fossil, gem, and mineral show
13 views • 1 month ago
21:31
(Really) Big Birds - the rise of giant prehistoric fossil birds
140 views • 1 month ago
48:42
PESA May Meeting - Rocking the Rainbow: Why Minerals Have Color
24 views • 1 month ago
11:52
PESA Presents - Galena, the ancient ore of lead
47 views • 1 month ago
6:34
PESA Presents - Garnet (the international minerals of mystery)
78 views • 1 month ago
22:12
Fluorescent Minerals (and why they don't really 'glow in the dark') - PESA Presents
58 views • 1 month ago
9:51
PESA Presents - Fluorite (the state mineral of Illinois)
79 views • 2 months ago
3:21
PESA Presents - Crocoite, the lead chromium mineral
15 views • 2 months ago
10:16
PESA Presents - Ferns in and out of the Fossil Record
40 views • 2 months ago
6:40
PESA Presents - Feldspar Minerals
148 views • 2 months ago
58:51
PESA April Meeting - MidWest Collecting
7 views • 2 months ago
35:50
Fossil Frauds, Fakes, Funnies, and Phonies - when paleontological progress goes 'boink'
83 views • 2 months ago
6:12
PESA Presents - Archaeopteris, King of the Ancient Forests
32 views • 2 months ago
5:52
PESA Presents - Armored dinosaurs
223 views • 2 months ago
13:05
PESA Presents - Celestine, a common candidate for the official mineral of Pennsylvania
144 views • 2 months ago
5:16
PESA Presents - Dolomite
39 views • 2 months ago
48:31
PESA March Meeting - Mine Lighting History
14 views • 3 months ago
8:17
PESA Presents - Copper
31 views • 3 months ago
8:27
PESA Presents - I'm a crinoid!
16 views • 3 months ago
8:30
PESA Presents - Underwater Geology
110 views • 3 months ago
8:42
PESA Presents - Volcanic Products
31 views • 3 months ago
5:11
PESA Presents - Tsunami
28 views • 3 months ago
1:04:12
HD PESA February Meeting Atlas Cement Co Museum Tour
23 views • 4 months ago
17:11
PESA Presents Calcite
259 views • 4 months ago
1:04:12
PESA February Meeting - Atlas Cement Company Museum
16 views • 4 months ago
45:44
PESA Gem Tree Workshop
35 views • 4 months ago
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