Rocks With White Crystals Inside

Igneous rocks such as granite or lava are tough frozen melts with little texture or layering rocks like these contain mostly black white and or gray minerals.

Rocks with white crystals inside.

Crystals with small flat surfaces are said to have facets all crystals have a faceted surface but not all crystals have multiple facets. If no crystals form the result will be natural glass. Finding a cool looking rock and then dissolving the calcite out of it with white vinegar to expose crystals in one week. Igneous rock may form crystalline structures as it cools giving it a granular appearance.

Sedimentary rocks such as limestone or shale are hardened sediment with sandy or clay like layers strata they are usually brown to gray in color and may have fossils and water or wind marks. Igneous rock is created by volcanic activity forming from magma and lava as they cool and harden. Geodes in sedimentary rocks are usually found in limestones dolomites and calcareous shale in these deposits a gas filled void can serve as the opening for geode formation. Shells tree branches roots and other organic materials often decay away to leave a void for the formation of mineral materials.

Many excellent books and websites have been written to help identify crystals on or within rocks. It is most often black gray or white and often has a baked appearance. Collect several rock samples with crystals before identifying them.