Mediospirifer Posted January 8, 2016 Author Share Posted January 8, 2016 Some cool pieces of gypsum: Pyrite, including several pyritized fossils. The 'pyrite snake' at left may be an infilled burrow: And calcite: More minerals to come! Link to comment Share on other sites More sharing options...
Mediospirifer Posted January 8, 2016 Author Share Posted January 8, 2016 A piece of Didochite: Lots of Celestite. Ohio has some of the best celestite crystals in the world: And Fluorite. Some of the brown fluorite fluoresces yellow under a UV light: The next case: Origin of Rock Types. I like the artwork! Especially the volcanic bomb position. More to come! Link to comment Share on other sites More sharing options...
Mediospirifer Posted January 8, 2016 Author Share Posted January 8, 2016 Closeup of the Volcanic bomb, emerging from the cloud of volcanic debris: Tuff: Meta-Syenite Porphyry and Lava: Granite, Gabbro, and Hornblende Syenite: More to come! Link to comment Share on other sites More sharing options...
Mediospirifer Posted January 8, 2016 Author Share Posted January 8, 2016 Quartzite: Gneiss, Eclogite, and Garnet Schist: Banded Sandstone: Slate: More to come! Link to comment Share on other sites More sharing options...
Mediospirifer Posted January 8, 2016 Author Share Posted January 8, 2016 Anhydrite and Gastropod Limestone. Except that the "Gastropod Limestone" is jasper, not limestone! This is a stone I've seen sold as "Turritella Agate", a type of jasper containg Elimia tenera gastropod fossils--in other words, neither Turritella nor Agate! Coal and Obsidian: Conglomerate and Siliceous Oolite. I apologize for missing the conglomerate! A closer look at the "Gastropod Limestone": Fossiliferous Limestone: More to come! Link to comment Share on other sites More sharing options...
Mediospirifer Posted January 8, 2016 Author Share Posted January 8, 2016 Obsidian and Coquina: Siliceous Oolite, Sandstone, and Chalk: Next case: Rock-Forming Minerals: At left, Oxides and Silicates, at right, Carbonates, Phosphates, and Sulfates: More to come! Link to comment Share on other sites More sharing options...
Mediospirifer Posted January 8, 2016 Author Share Posted January 8, 2016 Native Minerals, Halides, and Sulfides: A few closer looks. Olivine: Oxides: and Carbonates: Final case: What is a Mineral? This case gives a good overview of mineral properties: Hardness and Crystal Form: More to come! Link to comment Share on other sites More sharing options...
Mediospirifer Posted January 8, 2016 Author Share Posted January 8, 2016 Color, Cleavage, and Specific Gravity: Streak: Luster: That's the display collection. We were also invited to see a few things in the research collection. Here's one of the specimen drawers of pyrite: And a drawer of galena: A few more pictures to come! Link to comment Share on other sites More sharing options...
Mediospirifer Posted January 8, 2016 Author Share Posted January 8, 2016 Part of the Museum's collection of meteorites: An impressive fossil, Tetradium fibratum. The coin in the middle is an American quarter. This specimen is about two feet across! And here's the chunk of petrified wood in the basement. This is the one mentioned in the "Recent Acquisitions" case as being too heavy for the elevator: And the poster above it describing the fossilization process for Arizona petrified wood: More to come! Link to comment Share on other sites More sharing options...
Mediospirifer Posted January 8, 2016 Author Share Posted January 8, 2016 One more picture of the petrified wood, with my hand for scale. Hey, it didn't say "Please Don't Touch" anywhere! Here's a photo of the library from our first visit in 2010. We didn't look in there this year, but it probably hasn't changed much: There were some rocks on display in the library when we visited it. Here's a nice specimen of Fluorite and Calcite: Beryl: Petrified Wood: And finally, Celestite: That's the tour, my friends! It's a very good place to visit if you're ever in the area. Thank you for joining me! Link to comment Share on other sites More sharing options...
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