[Minerals] Another important test is determining how many p…
[Minerals] Another important test is determining how many planes of cleavage a particular mineral has. Look at the mineral below. A knife was used to break the mineral into smaller fragments. How many planes of cleavage does the mineral have?
Read Details[Minerals] When minerals cool slowly, they tend to form lar…
[Minerals] When minerals cool slowly, they tend to form larger, better-developed crystals. We use the terms “euhedral,” “subhedral,” and “anhedral” to describe different levels of crystal development. Below is a cartoon rendering of the edge of an amethyst geode. Drag the labels to the correct part of the image to show where each of the different types of crystals appear to have formed.
Read Details[Minerals] Let us look at silicates in a little more detail…
[Minerals] Let us look at silicates in a little more detail. Depending on a silicate mineral’s composition, the Si-O tetrahedra that make up the mineral will arrange themselves in different patterns. Drag the silicate framework name to the correct schematic on the image provided.
Read Details[Tornadoes, Thunderstorms & Hurricanes] The map below shows…
[Tornadoes, Thunderstorms & Hurricanes] The map below shows the number of tornadoes per year (per 26,000 square km, for a 27-year period). Order the cities listed below based on the likelihood of their experiencing a tornado over the course of a year. Start with the least likely.
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