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January 7, 2018 Weekly Geology Guest, Graphite

Graphite, 01-07-17

Greetings from the Bluff Park Back Porch, way up yonder on Shades Mountain (1,109′) in Alabama:

 
 
This week’s industrial mineral is Graphite.
 

Graphite ( /ˈɡræft/), archaically referred to as plumbago, is a crystalline allotrope of carbon, a semimetal, a native element mineral (CARBON), and a form of coal.[5] Graphite is the most stable form of carbon under standard conditions. Therefore, it is used in thermochemistry as the standard state for defining the heat of formation of carbon compounds.
Uses of graphite include refractories, batteries, steelmaking, brake linings, foundry facings and lubricants,
pencils, and a whole bunch of other uses.
Graphite is mined by both open pit and underground methods. Graphite usually needs beneficiation.
Graphite Locality: Old Beneis Farm, Marlborough, Cheshire County, New Hampshire, USA (Locality at mindat.org) Size: 5.6 x 3.8 x 1.8 cm. A large, solid mass of elemental carbon or graphite with the super, greasy/waxy feel and typical, sheet-like form. This splendent, steel-gray specimen is from a very uncommon New Hampshire locality – the old Beneis Farm, Marlborough, Cheshire County. Ex. Bob Whitmore Collection, a noted New England collector and field collector.

Graphite-233436.jpg
Rob Lavinsky, iRocks.com – CC-BY-SA-3.0

Graphite plates and sheets, 10–15 cm high, Mineral specimen from Kimmirut, Baffin Island.
Mike Beauregard from Nunavut, CanadaKimmirut Graphite
World-class graphite crystals in standing sheets 10 to 15 cm high. My thanks to the Manitoba Mineral Society for pointing out these unlabeled specimens from Baffin Island, on display at the Canadian Museum of Nature, Ottawa, Canada.

Graphite pencils
https://upload.wikimedia.org/wikipedia/commons/0/08/Pencils_hb.jpg
Original uploader was Dmgerman at en.wikipediaTransfered from en.wikipedia: 2007-09-15 07:35 Dmgerman 600×400×8 (119825 bytes) two pencils grade hb Transfer was stated to be made by User:Ddxc.

https://collections.nmnh.si.edu/media/?i=10424966&w=12000

https://vignette.wikia.nocookie.net/powerlisting/images/c/cc/Graphite.jpg/revision/latest?cb=20130331015258

Ceylon Graphite: Preparing to Fuel the Global Electric Vehicle Industry With The World’s Highest Quality Graphite | Energy and Gold Ltd.
https://i1.wp.com/energyandgold.com/wp-content/uploads/2017/02/Graphite.jpg
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Editors Note:  It is the intent of this site to keep this discussion as simple as possible, so as to educate the interested general public and not to discuss with the geology crowd the latest geologic theories and nuances.  Thanks, R
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“No copyright infringement intended.
The rights belong to their respective owners”

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We will now continue down the Industrial Mineral dusty trail and continue with Gypsum.
 
Enjoy the adventure!
 
Thanks,
 

R
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