earth science

Wavellite

Wavellite is a earth science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Wavellite rather than just read about it. In short: Wavellite is an aluminium basic phosphate mineral with formula Al3(PO4)2(OH, F)3·5H2O. Distinct crystals are rare, and it normally occurs as translucent green radial or spherical clusters.

Key takeaways

Wavellite belongs to earth science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Wavellite to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Wavellite from memory before moving on to harder problems.

Reference excerpt

Wavellite is an aluminium basic phosphate mineral with formula Al3(PO4)2(OH, F)3·5H2O. Distinct crystals are rare, and it normally occurs as translucent green radial or spherical clusters.

Discovery and occurrence

Wavellite was first described in 1805 for an occurrence at High Down, Filleigh, Devon, England and named by William Babington in 1805 in honor of Dr. William Wavell (1750–1829), a Devon-based physician, botanist, historian, and naturalist, who brought the mineral to the attention of fellow mineralogists. It occurs in association with crandallite and variscite in fractures in aluminous metamorphic rock, in hydrothermal regions and in phosphate rock deposits. It is found in a wide variety of locations, notably in the Mount Ida, Arkansas area in the Ouachita Mountains. It is sometimes used as a gemstone.

See also List of minerals Apatite, fluoro-phosphate of calcium Pyromorphite, chloro-phosphate of lead Turquoise, a hydrated phosphate of copper and aluminium

References

External links "Wavellite at museum of Barnstaple and North Devon". Retrieved 9 May 2020.

Illustrations

Worked examples

Example 1 — a first encounter with Wavellite

Start with the simplest possible case. Write down what Wavellite claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In earth science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Wavellite before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Wavellite ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Wavellite

In research: Wavellite appears in earth science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Wavellite in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Wavellite is common in secondary-school and first-year university syllabi. It links to neighbouring topics Aluminium minerals, Fluorine minerals, Gemstones, so understanding it makes those chapters shorter.
In everyday life: Look for Wavellite outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Wavellite in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Wavellite means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Wavellite out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Wavellite in simple terms?

Wavellite is an aluminium basic phosphate mineral with formula Al3(PO4)2(OH, F)3·5H2O. Distinct crystals are rare, and it normally occurs as translucent green radial or spherical clusters.

Why does Wavellite matter?

Because it connects several earth science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Wavellite?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Wavellite.