File:Miorcani_flint.jpg · Wikimedia Commons · See Wikimedia Commons
Also known as flintstone, flint rock
right|thumb|A piece of flint long, weighing 171 grams
I appreciate your request, but the context provided only shows a caption describing a physical specimen of flint (its size and weight) without explaining what flint actually is or why it matters. I don't have enough information to write an accurate 2-sentence overview based solely on this context, as you've requested.
AI-generated from the Wikipedia summary — may contain errors.
Key facts
- Rock.type
- Sedimentary
- Rock.name
- Flint
- Rock.image
- Miorcani flint.jpg
- Rock.alt
- A sample of Miorcani flint
- Rock.caption
- A sample of Miorcani flint from the Cenomanian chalky marl layer of the Moldavian Plateau ( wide)
- Rock.composition
- Cryptocrystalline quartz
via Wikipedia infobox
Wikidata facts
- Subclass of
- chert
- Material used
- silicon dioxide
- Image
- Silex-Zaragoza.jpg
Show 4 more facts
- Commons category
- Flint (rock)
- Commons gallery
- Flint
- different from
- Krzemień
- on focus list of Wikimedia project
- Wikipedia:Vital articles/Level/4
via Wikidata · CC0
Article · 中文
燧石俗称火石，是一种比较常见的硅质岩石，主要由石英（SiO2）组成，致密、坚硬，多为灰、黑色，敲碎后具有贝壳状断口，根据其存在状态，分为两种类型： * 层状燧石：多与含磷和含锰的黏土层共生，分层存在，单层厚度不大，但总厚度可达几百公尺，有块状和鲕状的区别。 * 结核状燧石：多产于石灰岩中，有球状、卵状、棒状、盘状、葫芦状、不规则状等结核体，一般只有5-15厘米，大的可达1-2米。 燧石由于坚硬，破碎后产生锋利的断口，所以是最早为石器时代的原始人所青睐，绝大部分石器都是用燧石打击制造的，燧石和铁器击打会产生火花，所以也为古代人用作取火工具，中国古代常用一小块燧石和一把钢制的“火镰”击打取火，所以燧石也叫作火石，燧石槍也是利用扳机击打火石引发火药的。现代利用燧石的坚硬性质，将燧石作为研磨的原料。
Abstract from DBpedia / Wikipedia · CC BY-SA
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