| Class: | 5C |
| Name: | Yam Wing Yan |
| Year: | 2017 – 2018 |
| 地質年代：(化石) (岩石)
早石炭紀時期
化學組成, 鍵及結構：(礦物) l 氧化鋁，鐵，石灰，鉀鹽，氧化鎂 l 分層結構
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Geological Age: (Fossil) (Rock)
early Carboniferous period
Chemical composition, bonding and structure: (Mineral) l Alumina, iron, lime, potash, magnesia l layered structure
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| 形成：(岩石) (礦物)
砂岩主要由風化和侵蝕產生的沙粒礦物顆粒或岩石碎片組成。沉積物沉積在沙丘中。累積的沉積物被上層的重量擠壓。溶解在水中的礦物將鬆散的沉澱物粘合在一起。最後，鬆散的沉積物通過岩石化轉化為稱為沙漠砂岩的固體石頭。
原生物：(化石)
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Formation:(Rock) (Mineral)
Sandstone composed mainly of sand-sized mineral particles or rock fragments which are produced by weathering and erosion. The sediment is deposited in desert dunes. Accumulated sediment is compacted by the weight of overlying layers. Minerals dissolved in water cement the loss sediment together. Finally, loose sediment is transformed to solid rock called desert sandstone by lithification.
Living Specimens: (Fossil)
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| 特性：
l 顆粒大小: 0.06 – 2mm l 顏色：灰色，黃色，紅色，白色 l 礦物成分：石英，長石和少量其他礦物質 l 抗壓強度：從365到460 Kg / m2
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Properties:
l Grain size: 0.06 – 2mm l Colour: grey, yellow, red, white l Composition of minerals: quartz, feldspar and varying minor amounts of other minerals l Compressive Strength: Varies from 365 to 460 Kg/m2
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| 用途：(岩石) (礦物)
砂岩被用作建築石材，建築材料，軌道和路徑，裝飾性石，以及具有經濟價值的礦物來源。
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Application: (Rock) (Mineral)
Sandstone is used as a building stone, architectural aggregate, track and trail pathways, decorative stone, and a source of economically valuable minerals.
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| 分佈：(岩石) (礦物)
沙漠沙丘附近
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Distribution: (Rock) (Mineral)
Near sand dunes in desert
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