Hausmann named the mineral biotite in honor of French physicist Jean-Baptiste Biot, who explored the optical properties of mica. Biotite, like Muscovite, is a very poor conductor of heat and electricity, and is thus used as an insulator for various electrical products and semiconductors. Black mica and "white mica" (muscovite) often occur together within a rock and may even be found side-by-side. Biotite is mostly found in Russia, Canada, and Sicily, Italy. Please consider supporting my work on Patreon! Symbolizes spiritual support. USGS image. © 2020 crystalsandjewelry.com | We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites. If you have concerns about your physical or mental health then you should immediately contact a qualified medical professional. It has water between the layers which is the reason why it expands greatly when heated. It will support you in viewing all aspects of your life and your experiences from a higher perspective so that you can act accordingly. Biotite will strengthen your emotions in a positive way and help you achieve clarity of thought. [4][5] The term biotite is still used to describe unanalysed dark micas in the field. Biotite is a common rock-forming mineral, and is especially noted in, Biotite is found in abundance worldwide, but collectors specimens are not common and come from few localities. Other notable occurrences include Bancroft and Sudbury, Ontario Canada. Biotite will also strengthen the love that you have for yourself so that you can keep giving love to others. All forms of mica, including biotite, may be ground and mixed. The flat faces of the hexagonal crystals give mica a glassy, pearlescent appearance. When held up to the light, the sheets are transparent to translucent with a
Biotite transforms to clay minerals and is not very resistant to weathering, which is why it can also be found in sandstones and sediments. The name "biotite" is also used as a generic field term for any incompletely analysed dark mica. The high iron content, which imparts dark colors, rules out biotite from many industrial uses. Individual group member minerals such as. Biotite is known to be an excellent stone for the office because its energies can increase methodical and systemic approaches. Biotite was named by J.F.L. Lighter colors also occur, including yellow and white. Biotite is used to determine the age of rock through the process of argon -argon dating or potassium-argon dating. [12] Biotite is an essential phenocryst in some varieties of lamprophyre. Biotite will ground your highest emotions and thoughts so that you can achieve emotional balance and follow your heart’s desires. It will help you in shifting your old ideas and preconceived notions so that you will realize your spiritual self. Members of the biotite group are sheet silicates. Humans have known about and used mica since prehistoric times. This stone will also encourage you to look at different issues intelligently. Biotite is found in igneous and metamorphic rocks. Structural groups mainly; based on rruff.info/ima, modified, Biotite mineral information and data Mindat, "The effect of pH, grain size, and organic ligands on biotite weathering rates", "Identification Tables for Common Minerals in Thin Section", https://en.wikipedia.org/w/index.php?title=Biotite&oldid=988046073, Short description is different from Wikidata, Creative Commons Attribution-ShareAlike License, Dark brown, greenish-brown, blackish-brown, yellow, white, This page was last edited on 10 November 2020, at 18:52. Inexpensive mineral collections are available in the Geology.com Store. When used in acupuncture, Biotite energies can help increase the flow of energy to specific locations in the body. As a crown chakra stone, Biotite will also assist you in channeling. Although not easily seen because of the cleavage and sheets, fracture is uneven. Biotite has a small number of commercial uses. Biotite can be used in different commercial purposes as well. A generalized chemical composition for the biotite group is: The name "biotite" is used in the field and in entry-level geology courses because these minerals generally cannot be distinguished without optical, chemical, or x-ray analysis. The healing energies of this stone will help you maintain the best quality of your thoughts and the order of how you process new information. It’s used in treating eye problems, as well as throat and voice conditions. These reflections can fool the inexperienced panner into thinking that he has found gold. The energy of Biotite can help remove stagnant energies and blockages and help stabilize your energy fields. It forms a lens shape when it becomes heated by the sun and outwardly expands. [13], An igneous rock composed almost entirely of dark mica (biotite or phlogopite) is known as a glimmerite or biotitite. Biotite dissolves in both acid and alkaline aqueous solutions, with the highest dissolution rates at low pH. It appears greenish to brown or black, and even yellow when weathered. A small list of the biotite minerals is given below with their chemical compositions. It will work to clear your mind and relax you in preparation for meditation. Matteo Chinellato - ChinellatoPhoto / Getty Images, Rock-Forming Minerals Comprise the Majority of Earth's Rocks, A Few Rocks That Include Silicate Materials, Picture Guide to Common and Less-Common Minerals, Slate Rock Definition, Composition, and Uses, Feldspar Distinctions, Characteristics, and Identification, Everything You Need to Know About Igneous Rocks, The 12 Most Common Blue, Violet, and Purple Minerals, Ph.D., Biomedical Sciences, University of Tennessee at Knoxville, B.A., Physics and Mathematics, Hastings College. Biotite has a small number of commercial uses. can produce bright bronze-colored reflections in the pan when struck by sunlight. May alter to vermiculite. Mica is birefringent, making it useful to make wave plates. In thin section, biotite exhibits moderate relief and a pale to deep greenish brown or brown color, with moderate to strong pleochroism. It is also used in the potassium-argon and argon-argon methods of dating igneous rocks. Biotite is black magnesium/iron-based mica of low commercial value. It appears in the form of thin sheets which generally range from 0.003 mm to 0.1 mm in thickness. It is an abundant mineral, calculated to account for about 7 percent of the continental crust.