Elucidates this common mineral's composition and provides details on its origins and its uses.
Concise encyclopedia entry expounds upon this sedimentary rock's composition and commercial uses.
Presents information about the class, composition and characteristics of Scheelite. Find out how to order a sample.
Learn about the structure and the different varieties of this metamorphic rock.
Learn about a variety of rock created through the deposition of silt, gravel, and other matter.
Encyclopedia entry features the chemical composition, colors, and properties of this mineral.
Lists the members of this mineral family, discusses their compositions and structures, and describes their geographic distributions.
Offers a brief introduction to this class of sedimentary rock, some varieties of which are sources of petroleum.
Defines this common variety of metamorphic rock, with details on its origins, characteristics, and commercial uses.
Facts and figures on the properties and distribution of this variety of zinc carbonate are accompanied by photos of the substance.
Introduces the most significant source of zinc, known chemically as zinc sulfide. See what it looks like.
Article provides details on this crystal's chemical composition, hardness, specific gravity, and different color phases.
Browse through the catalog of mineral spheres and get order info. Also includes links to a sphere society and Spherical World newsletter.
Discover this mineral's chemical composition and its properties, and find out where it is mined.
Get to know the components of this group, which includes common spinel, gahnite, hercynite, and galaxite.
Find facts and figures on this crystal's composition, properties, and its importance as a source of lithium.
Learn about this pyroxene mineral's composition, hardness, specific gravity, and industrial uses.
Read a brief description of this form of talc, known colloquially as soapstone.
Explains the origins, composition, and physical properties of this ore of antimony trisulfide.
Learn about the different varieties of these minerals, their origins, and their commercial uses.
Get to know this mineral of sedimentary origin by learning about its composition and where it is found.
Speculation continues about the otherworldly origins of these anomalous minerals found on several continents.
Popular as a gemstone, this mineral's encyclopedia entry includes details on its composition, properties, and origins.
Provides wholesale of minerals, crystals, and fossils. Check out the items in stock, and email inquiries concerning price and availability.
Defines a variety of mineral used in evaluating gold and silver ores for purity.
Details on this gemstone's composition and properties are accompanied by links to articles on related topics.
Learn about this variety of calcium carbonate and where it is quarried.
Introduces the ore from which tungsten is produced. Provides details on its composition, properties, and distribution.
Present the composition, class and characteristics of this mineral that is a series between Huebnerite and Ferberite.
Find a definition and characteristics of this mineral which is also known as Lead Molybdate.
Find facts on this crystal's composition, physical properties, and geographic distribution.