The study of the origin, chemistry, distribution, and structure of rocks.
Petrology
Displaying 501 - 600 of 1437
| Cat. # | Name | Description | ||
|---|---|---|---|---|
| 501 | 00.3.7.396.0002 | Quartz, skeleton | Hydrothermal quartz veins exposed by weathering of less resistant limestone host rock. Appears like a spiderweb made of rock. Color: TN |
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| 502 | 00.3.15.299.0002 | Concretion | Pyrite concretions. |
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| 503 | 00.3.11.242.0012 | Gneiss | Orbicular granite. |
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| 504 | 00.3.15.696.0009 | Slate | Contorte slate. |
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| 505 | 00.3.3.640.0009 | Alabandite | None |
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| 506 | 1990.20.0012 | Chert | Mahogany obsidian. Sphere. |
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| 507 | 1970.47.1.0442 | Galena | Unlabelled. |
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| 508 | 00.3.6.206.0010 | Copper | None |
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| 509 | 00.3.4.48.0005 | Chalcopyrite | Chalcopyrite, galenite |
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| 510 | 00.3.13.503.0002 | Claystone | None |
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| 511 | 00.3.10.153.0001 | Geode, calcite | None |
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| 512 | 00.3.15.333.0009 | Limestone | Cedar Valley limestone. |
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| 513 | 00.3.9.70.0011 | Zinc ore | Calamine. |
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| 514 | 1970.35.8.0004 | Rock | None |
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| 515 | 00.3.15.308.0011 | Limestone | Limestone with dendrites. |
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| 516 | 00.3.11.248.0004 | Lava | None |
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| 517 | 00.3.3.677.0001 | Williamsite, serpentine | None |
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| 518 | 1991.38.1.0002 | Sandstone | Sandstone - uranium. Color: GY-WH |
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| 519 | 1970.47.4.29.0004 | Sandstone | Flexible sandstone. |
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| 520 | 00.3.11.256.0005 | Perlite | Var. Perlite. |
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| 521 | 00.3.6.217.0006 | Coal | Bituminous. |
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| 522 | 1978.3.0003 | Agate | Keswick agate. |
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| 523 | 00.3.5.102.0013 | Quartz | None |
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| 524 | 00.3.10.183.0007 | Marble | None |
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| 525 | 00.3.15.343.0005 | Pebble, agate | None |
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| 526 | 1986.16.0061 | Agate | Flowering rose agate. |
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| 527 | 1970.47.1.0158 | Geode | Partial. |
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| 528 | 00.3.5.143.0005 | Geode | Iron stained lining. |
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| 529 | 1972.32.0012 | Rock | Jagged. One side is flat and the rock resembles a hemisphere. Color: BR,BK,WH |
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| 530 | 00.3.4.2.0014 | Gold | Gold ore galenite. |
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| 531 | 00.3.11.262.0006 | Schist | Mica schist. |
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| 532 | 1973.0032 | Porphyry, dacite | Dactite porphyry. |
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| 533 | 00.3.15.319.0003 | Obsidian | None |
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| 534 | 00.3.7.397.0001 | Porphyritic | None |
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| 535 | 00.4.6.220.0001 | Coal | Bituminous. |
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| 536 | 00.3.15.299.0004 | Limestone | Pisolitic. |
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| 537 | 00.3.11.242.0013 | Gneiss | Orbicular granite. |
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| 538 | 00.3.15.696.0010 | Sandstone | Faults. |
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| 539 | 00.3.3.641.0007 | Copper | None |
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| 540 | 1990.20.0013 | Obsidian | Pink. Sphere. |
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| 541 | 1970.47.1.0443 | Galena | Unlabelled. |
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| 542 | 00.3.6.206.0011 | Copper | Purple copper, erubescite in barite. |
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| 543 | 00.3.4.48.0008 | Silver | None |
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| 544 | 00.3.13.504.0003 | Lead | Rock |
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| 545 | 00.3.10.153.0002 | Geode, calcite | None |
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| 546 | 00.3.15.334.0003 | Fulgarite | None |
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| 547 | 00.3.9.70.0013 | Soapstone, serpentine | None |
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| 548 | 1970.35.8.0006 | Rock | None |
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| 549 | 00.3.15.309.0005 | Rock | None |
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| 550 | 00.3.11.248.0009 | Pumice | Charcoal gray, frothy. Color: GY |
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| 551 | 00.3.3.680.0002 | Chalk | None |
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| 552 | 1991.38.1.0003 | Taconite | Oil. Marked a., b. c. d. Color: PK |
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| 553 | 1970.47.4.29.0005 | Sandstone | Flexible sandstone. |
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| 554 | 00.3.11.256.0006 | Norlite | None |
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| 555 | 1978.3.0004 | Agate | Keswick agate. |
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| 556 | 00.3.5.104.0010 | Quartz, milky | Massive |
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| 557 | 00.3.10.185.0004 | Marble | Polished marble with so-called "Gold Streak" lunonite. |
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| 558 | 00.3.15.343.0006 | Pebble | Pebbles and gravel. |
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| 559 | 1986.16.0101 | Agate | Lake Superior agates. |
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| 560 | 1970.47.1.0164 | Zinc ore | With silver and pyrite. |
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| 561 | 00.3.5.143.0006 | Chyrsoprase | Var. chrysoprase. |
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| 562 | 1972.32.0013 | Rock | Oblong. Color: GY |
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| 563 | 00.3.4.2.0015 | Gold | Gold ore auriferous sulphurets in quartz. |
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| 564 | 00.3.11.262.0007 | Schist | Chlorite schist. |
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| 565 | 1973.0073 | Obsidian | Perlite. Apache tear embedded in perlite. Smoky gray with glassy effect in some places. Color: GY |
|
| 566 | 00.3.15.319.0006 | Clay | Fine. |
|
| 567 | 00.3.7.397.0005 | Pexwood | Feldspathic. |
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| 568 | 11.11.11.0197 | Meteorite fragments | Fragments (6), framed. Forest City, Iowa and N. C. Kansas. |
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| 569 | 00.3.15.299.0006 | Limonite | Pisolitic. |
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| 570 | 00.3.11.243.0003 | Granitoid | Weathered. |
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| 571 | 00.3.15.696.0011 | Limestone | Shaly limestone with dendrites. |
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| 572 | 00.3.3.644.0001 | Ore, lead | Lead, zinc and copper ore--Galena. Blende and chalcopyrite. |
|
| 573 | 1990.20.0014 | Coral | Pink. Sphere. |
|
| 574 | 1970.47.1.0444 | Galena | Unlabelled. |
|
| 575 | 00.3.4.48.0010 | Silver | None |
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| 576 | 00.3.13.512.0002 | Soil | Soil from "The Merse", a group of farms famous for their fertility, adjoining Duns, Scotland. |
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| 577 | 00.3.10.153.0003 | Geode, calcite | None |
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| 578 | 00.3.15.334.0005 | Quartzite | None |
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| 579 | 00.3.9.71.0002 | Soapstone | Soapstone - steatite. |
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| 580 | 1970.35.8.0007 | Rock | None |
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| 581 | 00.3.11.248.0014 | Granite | None |
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| 582 | 00.3.3.681.0001 | Geyserite | Geyser eggs of calcite. |
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| 583 | 1991.38.1.0004 | Oil shale | Color: GY |
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| 584 | 1970.47.4.33.0001 | Ore | Containing gold, silver, zinc and pyrites. |
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| 585 | 00.3.11.256.0007 | Peridotite | Var. Kinnberlite. |
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| 586 | 1978.3.0005 | Agate | Keswick agate. |
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| 587 | 00.3.5.106.0007 | Quartz, geode | None |
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| 588 | 00.3.10.185.0006 | Marble | Polished. |
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| 589 | 00.3.15.343.0007 | Pebbles | None |
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| 590 | 1987.3.0033 | Agate | None |
|
| 591 | 1970.47.1.0259 | Rock | Unlabelled. Color: GR |
|
| 592 | 00.3.4.21.0005 | Lead | and zinc Galena-Blende and pyrite. |
|
| 593 | 00.3.11.263.0002 | Tuff | Rhyolite tuff. |
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| 594 | 00.3.15.319.0007 | Gumbo, burnt | None |
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| 595 | 00.3.7.397.0007 | Schist | None |
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| 596 | 11.11.11.0903 | Rock | Glacial erratic, fine grain igneous rock, faceted |
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| 597 | 00.3.15.301.0007 | Schist | Crumpled laminae. |
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| 598 | 00.3.11.243.0006 | Granite | Coarse-grained. |
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| 599 | 00.3.15.696.0012 | Septarian | Concretionary. "Turtlestone". |
|
| 600 | 00.3.3.648.0001 | Ore, silver | None |
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