尖牙
发表于 2025-3-28 18:10:35
Fossil, of three billion years ago to the highly sophisticated biota of recent times. Such remains are usually petrified, but some have remained organic, like plant remains in lignite and coal, insects in amber or a frozen mammoth in polar ice. Fossils are the underpinning of our knowledge of past life and
shrill
发表于 2025-3-28 20:56:41
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尽忠
发表于 2025-3-29 00:43:58
https://doi.org/10.1007/978-3-642-18695-0Deformation; Europe; crystals; formation; fossils; gems; mineral; photography
没收
发表于 2025-3-29 07:09:25
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motivate
发表于 2025-3-29 09:38:38
Crystal,ent of its faces and angles, is rigorously based on the form and arrangement of the atoms forming that crystal. With that, crystallization handsomely illustrates the theorem of fractalism, referred to in the prologue.
musicologist
发表于 2025-3-29 13:00:33
Geode,re, respectively, the crystalline and amorphous (non-crystalline) variety of silica (SiO.).The chalcedony in geodes may also be referred to as agate, but that term is meant to indicate a chalcedony of semi-precious quality, discussed in the next chapter. Flintstone, chert and silex are other denominations for chalcedony.
extinguish
发表于 2025-3-29 16:31:16
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