Silicates (Tectosilicates)
Displaying 451 - 485 of 485
| Catalog # | Name | Description | ||
|---|---|---|---|---|
| 451 | 1990.53.0360 | Quartz | None |
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| 452 | 1990.53.0373 | Quartz, var. opal | None |
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| 453 | 1990.53.0378 | Quartz | With calcite. |
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| 454 | 1994.33.0003 | Quartz | Intergrowth of two doublely terminated crystals. Color: CL |
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| 455 | 1994.33.0004 | Quartz | Single crystal. Milky at inferior end, clear at superior end. Internal fractures visiblle. Approx. 7 inches in length. A Color: CL,WH |
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| 456 | 1994.33.0005 | Quartz | Primary crystal is clear with one large internal frature. Minute chips near termination. Base is milky with some pink. Ferrous staining on base and in fractures. Color: CL,WH |
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| 457 | 1994.33.0006 | Microcline (Feldspar group) | Multiple twinned crystals, cream colored. Some fracturing visible. Two labels attached. Quartz crystals present. Color: TN |
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| 458 | 1994.33.0007 | Microcline (Feldspar group) | Twinned crystals on iron stained matrix. |
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| 459 | 1994.33.0013 | Quartz | Variety - Tigers eye. Raw masive hunk. Color: BK,YL |
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| 460 | 1994.33.0016 | Quartz, smokey | Sceptre. Damage at termination. Has paper label glued on "Fred P. Fisher/Smokey Topaz/Colorado". Color: BR |
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| 461 | 1994.41.0001 | Quartz | Smokey and rose quartz crystals on agate. Thumbnail crystals of goethite visible. Color: BR,PK,BK |
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| 462 | 1994.41.0002 | Quartz | Drusy quartz in red-pink and white agate vugs. Color: RD,PK,WH |
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| 463 | 1994.41.0003 | Quartz | Variety agate, botryoidal crystal masses on grey white matrix. Color: GY,WH |
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| 464 | 1995.1.0001 | Quartz var. Agate (Silica group) | Two pieces of Keswick agate. a. and b. Color: PK,WH |
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| 465 | 1995.1.0002 | Quartz | Whole chalcedony nodule with small vug lined with quartz crystals. A few _______ needles. Color: CL,WH |
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| 466 | 1995.1.0003 | Quartz | Vug of drusy quartz crystals in chalcedony. Color: OR |
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| 467 | 1995.1.0004 | Quartz | Section of a vug; drusy quartz on botryoidal Keswick agate. Color: TN,WH |
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| 468 | 1995.1.0005 | Quartz | Quartz crystal lined vug in large piece of Keswick agate needles on quartz crystals. |
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| 469 | 1995.1.0006 | Quartz | Both chalcedony & agate (banded) varieties of quartz with small vug of crystals (rusty). Color: TN,WH,OR |
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| 470 | 1995.1.0007 | Quartz | Quartz crystal lined vugs in chalcedony. Color: CL |
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| 471 | 1995.1.0008 | Quartz | Var. Keswick agate, botriodal form in geode showing narrow white & rust banding. |
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| 472 | 1995.1.0009 | Quartz | Quartz crystals on Color: CL |
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| 473 | 1995.1.0010 | Quartz | Clear to gray quartz crystals lining vugs in Color: CL |
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| 474 | 1995.36.0020 | Analcime (Feldspathoid group) | Zeolite group. Small crystals on basalt. Color: CL |
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| 475 | 1995.36.0032 | Stilbite | Balls of crystals on quartz. Color: YL |
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| 476 | 1995.36.0035 | Heulandite | Group of crystals on basalt. Zeolite group. Color: WH,CL |
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| 477 | 1995.36.0050 | Mordenite | Zeolite group. acicular crystals in vug. Color: WH |
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| 478 | 1995.36.0058 | Albite (Feldspar group) | Var. clevelandite on orthoclase; good bladed crystals. Color: WH |
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| 479 | 1995.36.0063 | Cancrinite | Massive; occurs in pegmatite material. Color: YL |
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| 480 | 1996.16.0001 | Quartz | Cluster of several large crystals with smaller crystals interspersed throughout. Iorn staining present. Color: CL,WH,OR |
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| 481 | 1996.16.0002 | Quartz | Cluster of large crystals. Largest crystal has smokey tint. Iron staining is evident. Color: CL,WH,BR |
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| 482 | 1996.16.0003 | Quartz | Sintle terminating crystal. Internal fractures near termination. Minor cloudiness visible internally. Base is series of condhoidal facets with some iron staining present. |
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| 483 | 1996.16.0004 | Quartz | Cluster of crystals with one primary laarge crystal in center, with milkyness towards termination. Seven doubly terminated crystals present. Color: CL,WH |
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| 484 | 1996.16.0005 | Quartz | Cluster of 3 primary crystals. Crystal scars present on two of the 3 primary crystals. Some iron staining. Color: CL |
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| 485 | 2006.15.0065 | Quartz, var. Opal | Miniature in size, white iredescent opal, vitreous luster, 5.5-6.5 on hardness scale Color: White |
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