187 results for calcite

For many rock collectors it is not about beauty, or rarity, or location.  Fluorescence is about how that rock or mineral looks under a UV light.  Some ordinary and often ugly rocks ...

After Quartz, Calcite is the most next common mineral on the face of the Earth, comprising about 4% by weight of the Earth's crust. It is found throughout the world in sedimentary, metamorphic an ...

There are rocks and minerals to be found in Iowa, but the variety is low. Iowa is mostly rolling prairie land deposited by glacial activity over sedimentary rock. In the northeast corner, where ther ...

Septarian Nodules are actually sedimentary rock concretions. They actually look like giant mud balls, but when you break them open they have very pretty pockets of yellow. Some even have open pock ...

Indiana is mostly sedimentary rock brought by ancient seas and glaciers. This is great for fossils, but not great for rocks and minerals. During the past 2 million years, two major glacial advances ...

Lapis Lazuli (often just referred to as Lapis) is an opaque, bright blue stone consisting mainly of Diopside and Lazurite. Lapis often has gold flecks (Pyrite) or whiteish veins (Calcite).

Metaphysical Meanings on Rocks, Crystals and Minerals What is metaphysics? Metaphysics is the branch of philosophy that investigates principles of reality transcending those of any particular ...

Coquina Jasper is from India, and is one of those jaspers that has been around a long time and has been known by several names. It is also known as Elephant Skin Jasper, Cobra Jasper or Script St ...

Rhodonite is pink semiprecious stone, that is a metamorphic manganese metasilicate with a hardness of 5.5 to 6.5. The black dendritic inclusions are manganese oxide. It may also have white inclus ...

Rhodochrosite is a gorgeous gemmy pink stone mostly from Argentina. Rhodochrosite actually formed in the Inca silver mines after they were abandoned in the thirteenth century. These magnificent pi ...

Sodalite can be found in massive chunks or more rarely in crystal formation. The massive Sodalite is opaque, but the crystals are usually transparent to translucent. Though it can come in other c ...

Finding rocks and minerals in Maryland can be challenging. A lot of the good hunting areas, where rocks and minerals may be found, are heavily vegetated. The easternmost part of the state of Maryla ...