Pegmatite Intrusive Igneous Rock - 10 Unpolished Mineral Specimens

Pegmatite Intrusive Igneous Rock - 10 Unpolished Mineral Specimens

Overview

Pegmatite is similar to granite in its basic composition, and is known to contain rare earth minerals and gemstones.

Warnings

Pegmatite Intrusive Igneous Rock - 10 Unpolished Mineral Specimens

Regular price $11.99 In Stock
Reviews Read Reviews

Overview

Pegmatite is similar to granite in its basic composition, and is known to contain rare earth minerals and gemstones.

Warnings

Product Details

Pegmatite Rock - Pack of 10
by American Educational Products

Pegmatite is a holocrystalline (completely crystalline), intrusive igneous rock. With a basic composition similar to that of granite, Pegmatite tends to be composed of quartz, feldspar, and mica. It is made of interlocking phaneritic crystals that are typically bigger than 2.5cm (or 1 inch) in size. Those crystals are the most striking feature of pegmatites is their crystals, with individual ones having been found at over 10 meters in length.

It is of economic importance, due to often containing rare earth minerals such as tin and tungsten, and gemstones like aquamarine, tourmaline, topaz, fluorite, apatite and corundum.

Each rock or mineral specimen measures approximately 1-2 inches in length along its longest side.

Additional Information

SKU

AMEP5044B-10PK

Weight

0.5 lb

​ ​