Browse Items (1651 total)

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Kingdom: Animalia Phylum: Mollusca Class: Polyplacophora Order: Family: Genus: Species:

Schist with coarse chloritoid crystals (up to 1/8 inch) without preferred orientation. These crystals grow across the foliation developed in the schist, but appear deformed. Chloritoid is a silicate mineral made in metamorphism. It also contains…

From olivine layer of a typical chromite repeat sequence

Rock Sample:
The sample appears to be a conglomerate of crystals.The color is tan to dark green. The rock has low specific gravity . There are green, white, and brownish-orange clasts. There are some minor fractures on the outside of the sample. …

Hand Sample: Apahanitic, vesicular, dark gray-black basalt. Olivine crystals are scattered throughout the sample and are approx. 0.05cm in diameter. Vesicles are very predominant throughout the sample and range in diameter from 0.01 cm to 1.5 cm This…

Kingdom: Plantae

This coarse-grained specimen is typical of the massive, homogeneous anorthosite that occurs within the Marcy Massif and underlies the High Peaks region of the Adirondacks. The anorthosite from Route 3 is best represented by analyses 5-L and 8, Table…

A buff-colored siltstone/sandstone. The grains are angular and are quartz-dominated.

Thin section images were taken at a 400x magnification.

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Granite, dark facies, from the Concord Granite. Thin section contains quartz, plagioclase, potassium feldspar, and biotite. Hand sample shows lots of quartz and feldspars with dark biotite.

Conglomerate, dominated by carbonate pebbles). Only a medium grained (1-10cm) facies collection of out of what was perhaps a 50ft exposure of coarse conglomerates. Light pink quartzite pebbles are interpreted to have been deposited during the…

Poorly sorted, coarse grained conglomerate; bearing chert, quartzite and granitoid fragments in calcite cement, with an odd mica flake indicating very short transport. The facies that this rock is representative of is uncommon. Conglomerate beds at…