| Class: | 5e |
| Name: | Justin li |
| Year: | 2017 – 2018 |
| 地質年代：顯生宙
化學組成, 鍵及結構：SiO2 |
Geological Age: Phanerozoic
Chemical composition, bonding and structure: 二氧化矽 |
| 形成：岩石 礦物
原生物：化石 |
Formation : Rock Mineral
Living Specimens: Fossil |
| 特性：蠟質，無光澤，無色，灰色，紅色，白色，或嵌入礦物質的顏色
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Properties: Waxy, Dull,colorless, gray, red, white, any color due to embedded minerals
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| 用途：the art of hard stone carving
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Application: 硬石雕刻藝術
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| 分佈：墨西哥 | Distribution: mexico |
| 知多一點點：it is usually conchoidal
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More to learn: 主要是貝殼狀
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