化學組成, 鍵及結構：沉積岩

Chemical composition, bonding and structure: Sedimentary rock

風化和侵蝕會產生鬆散的碎片和穀物。殘骸和沈積物會沿著河流沉積在湖泊或淺海沿岸水域。 沉積物已經被壓實

由於壓實和膠結作用將鬆散的沉積物轉化為固體岩石稱為沉積岩。

原生物：(化石)

Weathering and erosion produce loose fragment and grains .Sediment and the remains of living organisms are deposited in lakes along rivers or in shallow coastal waters. Sediment have been compacted

Because of the compaction and cementation help transform loose sediment into solid rock called sedimentary rock.

Living Specimens: (Fossil)

1.層狀燧石：多與含磷和含錳的黏土層共生，分層存在，單層厚度不大，但總厚度可達幾百米，有塊狀和鮞狀的區別。

2.結核狀燧石：多產於石灰岩中，有球狀、卵狀、棒狀、盤狀、葫蘆狀、不規則狀等結核體，一般只有5-15厘米，大的可達1-2米。

1.Layered flint: Usually live with clay layer which include  manganese and phosphorus ,there are different layer occur , the thickness of each layer are not large .But the total layer can reach amount hundred meters high also there are differences blocky and oolitic.

2.Nodular flint: Usually made at lime stone .It have different shape like ball shape , rod shape irregular shape etc. Normally it only have 5-15 cm long if it is big it may reach 1-2 meters long.

古代人用作取火工具

現代利用燧石的堅硬性質，將燧石作為研磨的原料。

For the ancient people they use flint as tool for taking fire.

And now we use flint’s hard property to turn it to be the grind raw materials.

燧石通常可以在新結構或發生侵蝕的地方找到。

Flint can usually be found in areas where there is new construction or an area where erosion has occurred.