Browse Items (93 total)

  • Tags: Rocks and Minerals

Calcite

Fluorescent minerals: willemite, calcite, and franklinite.

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Scheelite

Fluorescent mineral.

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Willemite

Fluorescent mineral.

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Novaculite

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One polished specimen on conglomeratic novaculite consisting of dark, reddish brown grains of novaculite within a dark, reddish brown, silicified matrix.

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Magnetite

One specimen of massive, black magnetite.

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Rutile

One specimen of prismatic crystals of rutile, in white massive calcite.

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Pyrite

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One large partial crystal of pyrite.

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Opal

One specimen of common opal in a light reddish brown porphyritic rhyolite.

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Pegmatite

One specimen of a kunzite, biotite, plagioclase pegmatite. Note: kunzite; clear, lilac-colored variety of spodumene. The plagioclase is probably a sodic variety.

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Quartz

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One quartz crystal with both a positive and negative rhombohedral termination with one rhombohedron predominant.

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