Biotite from
Unnamed outcrop, Humboldt Township, Marquette County, Michigan, USA

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Classification
Species:	'Biotite' (not an IMA approved species)
Formula:	K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Confirmation
Validity:	Believed Valid
Data
Mineral Data:	Click here to view Biotite data
Locality Data:	Click here to view Unnamed outcrop, Humboldt Township, Marquette County, Michigan, USA
Data Identifiers
Mindat Occurrence Record ID:	405318
Long-form Identifier:	1:3:405318:7
GUID (UUID V4):	b968df64-ddf8-4413-9fe7-e4e2b78b8608
References
Heinrich, E. W., Robinson, George Willard (2004) Mineralogy of Michigan (2nd ed.) A.E. Seaman Mineral Museum and Michigan Technological University. 252pp.
Reference Search (possible matching items)
Sinkankas, John (1976) Gemstones of North America Vol. 2. Van Nostrand Reinhold Company, New York. Book (edition) from the Tourmaline Q ueen .1ine, Pala, San Diego County, California. From a pen-and-ink drawing by W. E...of tourmaline crystal forms 38. Map of San Diego County, California gem sources 3 9. Stewart Lithia· and...View of Clear Creek, San Benito County, California 55. Monterey County jade-producing shoreline, California...San Benito County, Calfornia E. L. Gray Opencut wall, Dallas Gem mine, San Benito County, California...Superior, Arizona Quincy mine No. 2, near Houghton, Michigan View of Prospect Park quarry, Paterson, New Jersey King, Vandall T. (2000) Mineralogy of Maine Vol. 2 - Mining History, Gems, and Geology. Maine Geological Survey. Book (volume) Duane L. Leavitt The Bennett Pegmatite, Oxford County, Maine . ........................................permanent photographic exhibits in the northeastern USA. The Shaubs have been active in ornithological research...tourmalinebearing Himalaya pegmatite at Mesa Grande, San Diego County, California. Most recently, Gene was gratified...Maine's treasure chest; Gems and minerals of Oxford County, second edition: Quicksilver Publications, West...Waterville, Maine Cranbrook Institute, Detroit, Michigan Bates Museum, Goodwill School, Fairfield, Maine (2022, May) Capelinha!. The Mineralogical Record Vol. 53 (3) The Mineralogical Record, Inc. Journal (issue) KRISTALLE Est.1971 Laguna Beach, California, USA • Tel: +1 949 494 5155 • Email: info@kristalle.com...only): $139/one year (Canada) $231/one year, (outside USA other than Canada) $325 for one year Subscription...to the A. E. Seaman Mineral Museum in Houghton, Michigan. In High School, Paul was an Eagle Scout at the...Society, supported gem and mineral shows around the county as a museum exhibitor and speaker, and served on...2003 to go to the A. E. Seaman Mineral Museum at Michigan Tech. The first installment of the 4000+ specimen Elliot, David H., Fanning, C. Mark, Laudon, Thomas S. (2016) The Gondwana Plate margin in the Weddell Sea sector: Zircon geochronology of Upper Paleozoic (mainly Permian) strata from the Ellsworth Mountains and eastern Ellsworth Land, Antarctica. Gondwana Research, 29 (1) 234-247 doi:10.1016/j.gr.2014.12.001 Journal (article/letter/editorial) The Ohio State University, Columbus, OH 43210, USA Research School of Earth Sciences, Australian National...University of Wisconsin-Oshkosh, Oshkosh, WI 54901, USA a r t i c l e i n f o Article history: Received...al. (1992a). similar lithology (forming an unnamed outcrop 25 km to the NW and one on the NE side of Henkle...the tuff bed (1–2 cm), which is continuous in outcrop, that it was reworked from older deposits and the...trace of K-feldspar, and a trace of muscovite and biotite. Volcanic rock fragments are abundant, principally Moore, T.P. (2016) Moore's Compendium of Mineral Discoveries 1960 - 2015 Vol. 2. Mineralogical Record Inc. Book long (Marty, 2004 ). AFRICA widely in Litchfield County, where good crystals were taken from quartz veins...region (Brunet, I 977b ). NEW YORK Amity, Orange County. At many isolated collected sites between the towns...Litchfield County. Ilmenite masses and crystals from somewhere near Washington, Litchfield County, were described...Bentley Lake Road occurrence, Faraday Township, Hastings County. In fall 1994, Dan and Shelley Lambert...Madawaska [Faraday] mine near Bow Lake, Hastings County. Some of the world's finest ilmenite specimens Whiteman, A. J. (1971) The Geology of the Sudan Republic. Clarendon Press. Book is not to detract from my gratitude to others unnamed who helped us on our way. Finally I should like...Wadi el Milk, sheet 45I. The dark colour of the outcrop is due to iron enrichment. Sudan Topographic Survey...feldspar and contains little or no orthoclase. Biotite is the 17 most common ferromagnesian mineral;...quartz-feldspar intergrowths are developed on a large scale. Biotite is the main ferro¬ magnesian mineral. Although...dolerites and basalts), hornblendeepidote schist, and biotite-hornblende feldspar schists. The predominant strike Whiteman, A. J. (1971) The Geology of the Sudan Republic. Clarendon Press. Book is not to detract from my gratitude to others unnamed who helped us on our way. Finally I should like...Wadi el Milk, sheet 451. The dark colour of the outcrop is due to iron enrichment. Sudan Topographic Survey...quartz-feldspar intergrowths are developed on a large scale. Biotite is the main ferromagnesian mineral. Although ‘cotton...feldspar and contains little or no orthoclase. Biotite is the (v) Sequence proposed by Ruxton (1956)...and basalts), hornblende- epidote schist, and biotite-hornblende feldspar schists. The predominant strike