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"Silver Mountain": Perseverance Nabs Oldest Mars Sample Yet With Texture "Unlike Anything We've Seen"
NASA’s Perseverance Mars rover has just collected its 26th sample, named "Silver Mountain", and NASA has confirmed not only ...
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What are thundereggs? The rare, chalcedony-filled rocks
The composition of the magma, including the amount of silica and the presence of various gases, also influences the types of minerals and textures found in the resulting igneous rocks. Thundereggs ...
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Activity: Volcano and earthquake challenge with MC Grammar
Investigate these igneous rocks by making observations. Describe these rocks - what colours, shapes and textures can you see? Are they all the same? What is different about them? One of these igneous ...