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グラファイト

File:Graphite-233436.jpg · Wikimedia Commons · See Wikimedia Commons

EntityQ5309· pop 95· linked from 1,512 articles

グラファイト

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Also known as graphite-2H, graphite-3R, black lead, mineral carbon, plumbago, silver graphite, Silver graphite

炭素の同素体の一つ

AI overview

Graphite is a naturally occurring crystalline form of carbon made up of many stacked layers of graphene, and it is the most stable form of carbon under normal conditions. It is widely used across many industries—particularly in refractories, lithium-ion batteries, foundries, and lubricants—with over 1.3 million metric tons consumed annually worldwide.

AI-generated from the Wikipedia summary — may contain errors.

Key facts

Mineral.name
Graphite
Mineral.category
Native mineral
Mineral.image
Graphite-233436.jpg
Mineral.imagesize
170px
Mineral.caption
Graphite specimen
Mineral.formula
C
Mineral.IMAsymbol
Gr
Mineral.strunz
1.CB.05a
Mineral.system
Hexagonal or Rhombohedral
Mineral.class
Dihexagonal dipyramidal (6/mmm) Hermann–Mauguin notation: (6/m 2/m 2/m)
Mineral.symmetry
P63mc (buckled) P63/mmc (flat)
Mineral.unit cell
a = 2.461, c = 6.708 [Å]; Z = 4
Mineral.color
Iron-black to steel-gray; deep blue in transmitted light
Mineral.habit
Tabular, six-sided foliated masses, granular to compacted masses
Mineral.twinning
Present
Mineral.cleavage
Basal – perfect on {0001}
Mineral.fracture
Flaky, otherwise rough when not on cleavage
Mineral.tenacity
Flexible non-elastic, sectile

via Wikipedia infobox

Research

53,963 papers

via PubMed

Wikidata facts

Subclass of
material
Has part
carbon
Mass
12
Image
GraphiteUSGOV.jpg
Show 21 more facts
Commons category
Graphite
topic's main category
Category:Graphite
NIOSH Pocket Guide ID
0306
Nickel-Strunz 9th edition (updated 2009)
1.CB.05a
chemical formula
C
Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
1.CB.05a
Commons gallery
Graphite
immediately dangerous to life or health
1250
sublimation temperature
6602
vapor pressure
0
time-weighted average exposure limit
2.5
streak color
black
Mohs' hardness
1.5
density
2.160
standard molar entropy
55.74
combustion enthalpy
393.5
IMA Mineral Symbol
Gr
on focus list of Wikimedia project
Wikipedia:Vital articles/Level/4
Strunz 8th edition (series ID, updated)
I/B.02a
2022 Harmonized System Code
250410
Sources (8)

via Wikidata · CC0

Article · 日本語

グラファイト(graphite、石墨、黒鉛)は、炭素から成る元素鉱物。六方晶系(結晶対称性はP63/mmc)、六角板状結晶。構造は亀の甲状の層状物質、層毎の面内は強い共有結合(sp2的)で炭素間が繋がっているが、層と層の間(面間)は弱いファンデルワールス力で結合している。それゆえ、層状に剥離する(へき開完全)。電子状態は、半金属的である。 グラファイトが剥がれて厚さが原子1個分しかない単一層となったものはグラフェンと呼ばれ、金属と半導体の両方の性質を持つ。 採掘は、スリランカのサバラガムワ、メキシコのソノラ、カナダのオンタリオ州、北朝鮮、マダガスカル、アメリカのニューヨーク州などで商業的に行われている。日本でも、かつて富山県で千野谷黒鉛鉱山が稼働していた。

Abstract from DBpedia / Wikipedia · CC BY-SA

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