earth science

Kieserite

Kieserite 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 Kieserite rather than just read about it. In short: Kieserite, or magnesium sulfate monohydrate, is a hydrous magnesium sulfate mineral with formula (MgSO4·H2O). It has a vitreous luster and it is colorless, grayish-white or yellowish.

Key takeaways

Kieserite 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 Kieserite to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Kieserite from memory before moving on to harder problems.

Reference excerpt

Kieserite, or magnesium sulfate monohydrate, is a hydrous magnesium sulfate mineral with formula (MgSO4·H2O). It has a vitreous luster and it is colorless, grayish-white or yellowish. Its hardness is 3.5 and crystallizes in the monoclinic crystal system. Gunningite is the zinc member of the kieserite group of minerals.

Etymology It is named after Dietrich Georg von Kieser (Jena, Germany 1862).

Occurrence Kieserite commonly occurs in marine evaporites and rarely in volcanic environments as a sublimate. It occurs in association with halite, carnallite, polyhalite, anhydrite, boracite, sulfoborite, leonite, epsomite and celestine.

Mars In early 2005, Mars Express, a European Space Agency orbiter, discovered evidence of kieserite in patches of Valles Marineris (the largest canyon on Mars), along with gypsum and polyhydrated sulfates. This is direct evidence of Mars's watery past and augments similar discoveries made by the Mars Exploration Rover Opportunity in 2004.

Moons of Jupiter Kieserite might also be a rock-forming mineral in the icy mantle of the outer three Galilean moons (Europa, Ganymede, Callisto). At pressures higher than 2.7 GPa, kieserite transforms to a triclinic crystal structure.

Uses It is used in the production of Epsom salt and as a fertilizer, the overall global annual usage in agriculture in the mid 1970s was 2.3 million tons.

Kieserite is also used for cleaning hard water deposits from tiles, stones, and other pool and fountain lining materials. Due to its hardness, which is greater than hard water deposits but less than tiles and other water feature linings, it is blasted at the hard water deposits to remove them. When used as a fertilizer, response to kieserite is likely where:

Soil Mg levels are low pH is high Intensive liming occurs to raise the pH Nitrogen is applied as ammonium, as this can lead to an antagonism between ammonium and magnesium Compacted soils exist There is a period of wet/cold weather Dry weather occurs, leading to low magnesium mobility in the soil profile.

See also List of minerals List of minerals named after people

References

Illustrations

Worked examples

Example 1 — a first encounter with Kieserite

Start with the simplest possible case. Write down what Kieserite 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 Kieserite 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 Kieserite 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 Kieserite

In research: Kieserite 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 Kieserite 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: Kieserite is common in secondary-school and first-year university syllabi. It links to neighbouring topics Evaporite, Magnesium minerals, Minerals in space group 15, so understanding it makes those chapters shorter.
In everyday life: Look for Kieserite 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 Kieserite in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Kieserite 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 Kieserite out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Kieserite in simple terms?

Kieserite, or magnesium sulfate monohydrate, is a hydrous magnesium sulfate mineral with formula (MgSO4·H2O). It has a vitreous luster and it is colorless, grayish-white or yellowish.

Why does Kieserite 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 Kieserite?

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 Kieserite.