Desert rose (crystal) A desert rose is an intricate rose-like formation of crystal clusters of gypsum or baryte, which include abundant sand grains.The "petals" are crystals flattened on the c axis, fanning open in radiating clusters.
感慨農業と海と塩分と砂漠は関係があるだろう
発掘された鉄剣
戦国時代の楚文字は有名
殷周春秋戦国時代 秦 漢
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